Please mind your head hi-res stock photography and images

A sign above a low doorway advising people to mind their head. Stock Photo

RFGK6XTN–A sign above a low doorway advising people to mind their head.

Rustic metal please mind your head sign on stone with blurred background of thatched roof. Norse mill, Shawbost, Isle of Lewis, Scotland, UK. Stock Photo

RF2JCPTW5–Rustic metal please mind your head sign on stone with blurred background of thatched roof. Norse mill, Shawbost, Isle of Lewis, Scotland, UK.

Please mind your head warning sign Stock Photo

RFT2DAGB–Please mind your head warning sign

Cheddar Caves - Please Mind Your Head Stock Photo

RF2K3TCC6–Cheddar Caves - Please Mind Your Head

RF2HWMCXB–Please mind your head warning sign

Man getting into black cab, outside House of Lord, Parliament House, London, UK Stock Photo

RM2G4BXNC–Man getting into black cab, outside House of Lord, Parliament House, London, UK

RM2ATNDAD–Please mind your head sign

Close-up of a Please Mind Your Head sign. Stock Photo

RF2H7RXM2–Close-up of a Please Mind Your Head sign.

Please mind your head signage. Stock Photo

RFJ690CR–Please mind your head signage.

Red gape and orbital ring accent head of breeding adult ring-billed gull (Larus delawarensis) sounding off in spring. Stock Photo

RMP2T2AG–Red gape and orbital ring accent head of breeding adult ring-billed gull (Larus delawarensis) sounding off in spring.

'Please Mind Your Head' Warning Signs Stock Photo

RMAMP9DX–'Please Mind Your Head' Warning Signs

Please mind the step sign on shop entrance door Stock Photo

RF2F0DN4P–Please mind the step sign on shop entrance door

Mind Your Head sign on safari van. Kenya. Stock Photo

RM2C2W25X–Mind Your Head sign on safari van. Kenya.

Man experiencing headache. Turn down that music please. Stock Photo

RFA5P1DT–Man experiencing headache. Turn down that music please.

Low roof please mind your head Stock Photo

RMAW36TP–Low roof please mind your head

For more variations of this image please visit my portfolio Stock Photo

RMFG50TJ–For more variations of this image please visit my portfolio

Cirencester - The Hare smokehouse bar & grill at Gosditch Street, Cirencester, Gloucestershire in March Stock Photo

RMHWE7FC–Cirencester - The Hare smokehouse bar & grill at Gosditch Street, Cirencester, Gloucestershire in March

String Driven Thing - Please Mind Your Head - Original Vinyl Cover Stock Photo

RM2YEMK82–String Driven Thing - Please Mind Your Head - Original Vinyl Cover

Portrait of depressed young man keeps hands together as prayer, eyes closed, head down over white background. Desperate guy praying for help. Concept Stock Photo

RF2DCD77T–Portrait of depressed young man keeps hands together as prayer, eyes closed, head down over white background. Desperate guy praying for help. Concept

RMATTWE5–warning sign mind your head

Head shot young happy grateful girl feeling relief. Stock Photo

RF2AP9XRM–Head shot young happy grateful girl feeling relief.

Creative retro 3d magazine image of dream dreamy guy practicing asana gears in brain open scull isolated drawing background Stock Photo

RF2JJWKJW–Creative retro 3d magazine image of dream dreamy guy practicing asana gears in brain open scull isolated drawing background

Head shot sincere smiling red-haired woman feeling thankful. Stock Photo

RF2ADYNM9–Head shot sincere smiling red-haired woman feeling thankful.

Much Marcle Herefordshire England GB UK 2013 Stock Photo

RMD8K0KN–Much Marcle Herefordshire England GB UK 2013

Head shot portrait young man folding crossed hands on chest. Stock Photo

RF2APA4EG–Head shot portrait young man folding crossed hands on chest.

Vintage vinyl record cover - String Driven Thing - Please Mind Your Head - NL - 1974 Stock Photo

RM2HK6Y63–Vintage vinyl record cover - String Driven Thing - Please Mind Your Head - NL - 1974

Head shot portrait grateful young woman holding hands on chest Stock Photo

RF2ABNGMH–Head shot portrait grateful young woman holding hands on chest

String Driven Thing - Please Mind Your Head - Vintage L.P Music Vinyl Record Stock Photo

RM2PXMDAW–String Driven Thing - Please Mind Your Head - Vintage L.P Music Vinyl Record

Photo collage of comics character huge absurd head guy running can i ask you please tell me your secrets isolated on outdoors background Stock Photo

RF2RMMAG5–Photo collage of comics character huge absurd head guy running can i ask you please tell me your secrets isolated on outdoors background

which should be neutral or nearly so. Please Can you tell me the reason ? A. Use No. 20 wire The Charge for Insertion under this head is $1 a Line., scientific american, 1875-05-11 Stock Photo

RM2ABWDA6–which should be neutral or nearly so. Please Can you tell me the reason ? A. Use No. 20 wire The Charge for Insertion under this head is $1 a Line., scientific american, 1875-05-11

RF2EPKYY5–Please mind the step sign on shop entrance door

StNicholas [serial] . VI. BEING POLITE No matter what your wish may be, It s easier, you 11 find,To ask for it politely, and Be sure to bear in mind,That questions are more quickly heardWhen they begin with one small word. For if to Mother you should say,Give me a piece of bread, Or, Let me go outside and play,She 11 surely shake her head; Nor is it any use to tease, When you ve forgotten to say please. And now I hope that when I write Such little rhymes as these,They 11 help you to be more polite, So please remember please.But after you have had your way, Then thank you, is the thing to say.. Stock Photo

RM2AM5MFX–StNicholas [serial] . VI. BEING POLITE No matter what your wish may be, It s easier, you 11 find,To ask for it politely, and Be sure to bear in mind,That questions are more quickly heardWhen they begin with one small word. For if to Mother you should say,Give me a piece of bread, Or, Let me go outside and play,She 11 surely shake her head; Nor is it any use to tease, When you ve forgotten to say please. And now I hope that when I write Such little rhymes as these,They 11 help you to be more polite, So please remember please.But after you have had your way, Then thank you, is the thing to say..

. The development of the chick : an introduction to embryology. Embryology; Chickens -- Embryos. HEAD-FOLD TO TWELVE SOMITES 97 the undifferentiated mass of the primitive streak. These condi- tions must be born in mind in the following description. The Neural Groove and Folds. Shortly after the formation of the head-fold the center of the medullary plate becomes sunk in the form of a deep groove beginning a short distance behind the f:-:>-^ ^. â¢/^2.' 'â m.. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloratio Stock Photo

RMPFA89X–. The development of the chick : an introduction to embryology. Embryology; Chickens -- Embryos. HEAD-FOLD TO TWELVE SOMITES 97 the undifferentiated mass of the primitive streak. These condi- tions must be born in mind in the following description. The Neural Groove and Folds. Shortly after the formation of the head-fold the center of the medullary plate becomes sunk in the form of a deep groove beginning a short distance behind the f:-:>-^ ^. â¢/^2.' 'â m.. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloratio

RMFG50TH–For more variations of this image please visit my portfolio

Portrait of depressed young man keeps hands together as prayer, eyes closed, head down isolated on grey background. Desperate guy praying for help. Co Stock Photo

RF2E3JPH5–Portrait of depressed young man keeps hands together as prayer, eyes closed, head down isolated on grey background. Desperate guy praying for help. Co

RMATTWE7–warning sign mind your head

Creative photo 3d collage of afro american funny positive woman hold fingers folded send wish to universe isolated drawing background Stock Photo

RF2PFH27N–Creative photo 3d collage of afro american funny positive woman hold fingers folded send wish to universe isolated drawing background

RM2AM5N4N–StNicholas [serial] . VI. BEING POLITE No matter what your wish may be, It s easier, you 11 find,To ask for it politely, and Be sure to bear in mind,That questions are more quickly heardWhen they begin with one small word. For if to Mother you should say,Give me a piece of bread, Or, Let me go outside and play,She 11 surely shake her head; Nor is it any use to tease, When you ve forgotten to say please. And now I hope that when I write Such little rhymes as these,They 11 help you to be more polite, So please remember please.But after you have had your way, Then thank you, is the thing to say.

RMFG50WE–For more variations of this image please visit my portfolio

Depressed middle aged man praying over grey wall background with copy space above head. Senior male desperate looking down, keeps hands together as pr Stock Photo

RF2E559WY–Depressed middle aged man praying over grey wall background with copy space above head. Senior male desperate looking down, keeps hands together as pr

Creative pop artwork collage of two palms together asking answer from woman with absurd huge brain isolated on pink color background Stock Photo

RF2T5MXWN–Creative pop artwork collage of two palms together asking answer from woman with absurd huge brain isolated on pink color background

Jackanapes . you. I have too little tenderness for my dear boy, youre faint- Can you spare me for a moment ? No, stay—Major ! What ? What ? My head drifts so—if you wouldnt mind. Yes ! Yes ! Say a prayer by me. Out loud please, I am gettingdeaf. My dearest Jackanapes—my dear boy One of the Church Prayers—Parade Service, youknow 42 HIS LAST WORDS. I see. But the fact is—GOD forgive me, Jackanapes—Im a very different sort of fellow to some of youyoungsters. Look here, let me fetch But Jackanapes hand was in his, and it wouldnt let go. There was a brief and bitter silence. Ton my soul I can only Stock Photo

RM2AM524D–Jackanapes . you. I have too little tenderness for my dear boy, youre faint- Can you spare me for a moment ? No, stay—Major ! What ? What ? My head drifts so—if you wouldnt mind. Yes ! Yes ! Say a prayer by me. Out loud please, I am gettingdeaf. My dearest Jackanapes—my dear boy One of the Church Prayers—Parade Service, youknow 42 HIS LAST WORDS. I see. But the fact is—GOD forgive me, Jackanapes—Im a very different sort of fellow to some of youyoungsters. Look here, let me fetch But Jackanapes hand was in his, and it wouldnt let go. There was a brief and bitter silence. Ton my soul I can only

RMFG50TK–For more variations of this image please visit my portfolio

. Dialogues of the day. Quite right. Get in. What are youstaring at? Dolly: His shabby coat. {Bursts into tears). AndIm so rich. L. Betty: Why, Dolly! What on earths thematter ? Dolly: I—nothing. My head aches. Please dont 90 Dialogues of the Day. mind. People have headaches—and heartaches everyday, and the world goes on all the same. L. Betty: Dolly, you are absurd. Dolly: No. Im only—sorry. L. Betty: Why, child? Why? Dolly {trying to smile through her tears): Oh,only because the dress is to be blue, instead of primrose.What else could a silly, worthless girl like me be sorryabout ? If I had Stock Photo

RM2AG1426–. Dialogues of the day. Quite right. Get in. What are youstaring at? Dolly: His shabby coat. {Bursts into tears). AndIm so rich. L. Betty: Why, Dolly! What on earths thematter ? Dolly: I—nothing. My head aches. Please dont 90 Dialogues of the Day. mind. People have headaches—and heartaches everyday, and the world goes on all the same. L. Betty: Dolly, you are absurd. Dolly: No. Im only—sorry. L. Betty: Why, child? Why? Dolly {trying to smile through her tears): Oh,only because the dress is to be blue, instead of primrose.What else could a silly, worthless girl like me be sorryabout ? If I had

. Farm legends. xt that your money is fairly earned, Ere ever it be spent;For comfort and love, however turned. Will neer pay six per cent. And, next, due care and diligence keepThat the mind be trained and fed ; For blessings ever look shabby and cheap.That light on an empty head. And if it shall please the gracious GodThat cliildren to you belong, Remember, my child, and spare the rodTill youve taught them right and wrong; And show em, that thougli this lifes a startFor the better world, no doubt, Yet earth an heaven aint so far apartAs many good folks make out! in. A word went over the broa Stock Photo

RM2AG47MN–. Farm legends. xt that your money is fairly earned, Ere ever it be spent;For comfort and love, however turned. Will neer pay six per cent. And, next, due care and diligence keepThat the mind be trained and fed ; For blessings ever look shabby and cheap.That light on an empty head. And if it shall please the gracious GodThat cliildren to you belong, Remember, my child, and spare the rodTill youve taught them right and wrong; And show em, that thougli this lifes a startFor the better world, no doubt, Yet earth an heaven aint so far apartAs many good folks make out! in. A word went over the broa

Scalpel : the 1911 yearbook of the Woman's Medical College of Pennsylvania . ^5. o. U Q . o id < Cj i 1 ** ^ - 07 Class of 1912 W. M. C. of Pa.Scptenibt-T 23, 1908.Dear Milkman— Please leave me a quart of milk everyday that Im in school. Im studyingmedicine and mama thinks I need it.Lovingly yours, Class Baby (Hughes). There, little girlie, dont cry;Theyve taken your money, tis said. On the sky parlor Hoor Lies the ring that you wore.Be careful you dont lose your head. (Pinero.) Schecty was a little mill; Schccty loved to grind;Schecty swallowed books till shed Dyspepsia of the mind. (Schec Stock Photo

RM2AXHG8P–Scalpel : the 1911 yearbook of the Woman's Medical College of Pennsylvania . ^5. o. U Q . o id < Cj i 1 ** ^ - 07 Class of 1912 W. M. C. of Pa.Scptenibt-T 23, 1908.Dear Milkman— Please leave me a quart of milk everyday that Im in school. Im studyingmedicine and mama thinks I need it.Lovingly yours, Class Baby (Hughes). There, little girlie, dont cry;Theyve taken your money, tis said. On the sky parlor Hoor Lies the ring that you wore.Be careful you dont lose your head. (Pinero.) Schecty was a little mill; Schccty loved to grind;Schecty swallowed books till shed Dyspepsia of the mind. (Schec

. Jackanapes. Daddy Darwin's dovecot. The story of a short life . nderness for— My dearboy, you re faint. Can you spare me for amoment? No, stay-— Major! What? What? My head drifts so — if you would nt mind. Yes ! Yes ! Say a prayer by me. Out loud, please; I amgetting deaf. My dearest Jackanapes — my dear boy — One of the Church Prayers—Parade Service,you know-— I see. But the fact is — God forgive me,Jackz.iapes ! - -1 m a very different sort of fellowto some of you youngsters. Look here, let mefetch — But Jackanapes hand was in his, and it wouldnot let go. There was a brief and bitter silen Stock Photo

RM2CNR3TD–. Jackanapes. Daddy Darwin's dovecot. The story of a short life . nderness for— My dearboy, you re faint. Can you spare me for amoment? No, stay-— Major! What? What? My head drifts so — if you would nt mind. Yes ! Yes ! Say a prayer by me. Out loud, please; I amgetting deaf. My dearest Jackanapes — my dear boy — One of the Church Prayers—Parade Service,you know-— I see. But the fact is — God forgive me,Jackz.iapes ! - -1 m a very different sort of fellowto some of you youngsters. Look here, let mefetch — But Jackanapes hand was in his, and it wouldnot let go. There was a brief and bitter silen

. Jackanapes. with illus. by Randolph Caldecott. , but you. I have too little tenderness for my dear boy, youre faint. Can you spare me for a moment? No, stay—Major i What? What? My head drifts so—it you wouldnt mind. Yes! Yes! Say a prayer by me. Out loud please, I am gettingdeaf. My dearest Jackanapes—my dear boy One of the Church Prayers—Parade Service, youknow 42 HIS LAST WORDS. I see. But the fact is—God forgive me, Jackanapes—Im a very different sort of fellow to some of youyoungsters. Look here, let me fetch But Jackanapes hand was in his, and it wouldnt let go. There was a brief and bi Stock Photo

RM2CEWDYN–. Jackanapes. with illus. by Randolph Caldecott. , but you. I have too little tenderness for my dear boy, youre faint. Can you spare me for a moment? No, stay—Major i What? What? My head drifts so—it you wouldnt mind. Yes! Yes! Say a prayer by me. Out loud please, I am gettingdeaf. My dearest Jackanapes—my dear boy One of the Church Prayers—Parade Service, youknow 42 HIS LAST WORDS. I see. But the fact is—God forgive me, Jackanapes—Im a very different sort of fellow to some of youyoungsters. Look here, let me fetch But Jackanapes hand was in his, and it wouldnt let go. There was a brief and bi

. Bizarre . ankey Ernst has gone away Upon a glee-club trip. And now some guests come walking in,Then Mother seats must find; But Mother always has a smile,Whatevers on her mind. Tis Mother Freed up early gets To look after our weal:Perchance to order up some beef, Perchance a haunch of veal. 216 She sees that all the doggies red Are cooked from head to tail;And seldom do these little pups To please our palates fail. Just think of all the hungry mouths That she each day must fill!The classes come, the classes go,— Yet Mother Freeds here still. Refrain: O, heres to Mother Freed, my lads, O, her Stock Photo

RM2CE55KP–. Bizarre . ankey Ernst has gone away Upon a glee-club trip. And now some guests come walking in,Then Mother seats must find; But Mother always has a smile,Whatevers on her mind. Tis Mother Freed up early gets To look after our weal:Perchance to order up some beef, Perchance a haunch of veal. 216 She sees that all the doggies red Are cooked from head to tail;And seldom do these little pups To please our palates fail. Just think of all the hungry mouths That she each day must fill!The classes come, the classes go,— Yet Mother Freeds here still. Refrain: O, heres to Mother Freed, my lads, O, her

Hardware merchandising September-December 1919 . Have you written to us yet aboutour special inducements todealers handling Royal OakTires? Suppose you do so to-day while the thought is stillfresh in your mind. Just sayon a post card, Please send meparticulars of your specialproposition to dealers, andwell do the rest. Oak Tire and Rubber Company, Limited Head Office : 19 Dundas Street East, Toronto Factory : Oakville, Ontario, Canada Winnipeg Office : 120 Lombard Street 140 HARDWARE AND METAL—Motor Accessories, Bicycles and Sporting Goods Section. October 18, 1&19 The Famous Guaranteeof Safet Stock Photo

RM2AKFYCN–Hardware merchandising September-December 1919 . Have you written to us yet aboutour special inducements todealers handling Royal OakTires? Suppose you do so to-day while the thought is stillfresh in your mind. Just sayon a post card, Please send meparticulars of your specialproposition to dealers, andwell do the rest. Oak Tire and Rubber Company, Limited Head Office : 19 Dundas Street East, Toronto Factory : Oakville, Ontario, Canada Winnipeg Office : 120 Lombard Street 140 HARDWARE AND METAL—Motor Accessories, Bicycles and Sporting Goods Section. October 18, 1&19 The Famous Guaranteeof Safet

. The Audubon magazine . the Don-key. You first gave your head to the Foxin exchange for his, didnt you?Yes, sir. And then you gave him your body inexchange for his ?Yes, sir. And after changing you still think youare the same as before? Please, sir, said Charley—but he didntknow what more to say. Never mind, said the Donkey, it is adifficult problem, and no wonder it puzzlesyou. A great deal might be said on bothsides, and I should like nothing better thanto sit down with a clever lawyer and argueit out. Now we will have a drawing les-son, take your slates all of you and draw aschoolmaster. A Stock Photo

RM2CPKC76–. The Audubon magazine . the Don-key. You first gave your head to the Foxin exchange for his, didnt you?Yes, sir. And then you gave him your body inexchange for his ?Yes, sir. And after changing you still think youare the same as before? Please, sir, said Charley—but he didntknow what more to say. Never mind, said the Donkey, it is adifficult problem, and no wonder it puzzlesyou. A great deal might be said on bothsides, and I should like nothing better thanto sit down with a clever lawyer and argueit out. Now we will have a drawing les-son, take your slates all of you and draw aschoolmaster. A

. The brain as an organ of mind. Brain; Thought and thinking; Brain. Fig. 98.—Brain of the Coati. Fig. 99.—Brain of the Cat. Fig. 100.—Brain of the Fox. the Dolphin. The convolutions in the latter are also exceedingly complex, so that in this respect its brain stands at present at the head of the well-known representatives of the ^longitudinal pattern,' just as that of the Elephant. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Stock Photo

RMRH7WN8–. The brain as an organ of mind. Brain; Thought and thinking; Brain. Fig. 98.—Brain of the Coati. Fig. 99.—Brain of the Cat. Fig. 100.—Brain of the Fox. the Dolphin. The convolutions in the latter are also exceedingly complex, so that in this respect its brain stands at present at the head of the well-known representatives of the ^longitudinal pattern,' just as that of the Elephant. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original

. African game trails;. Hunting. THROUGH THE PLEISTOCENE 15 settler, the tiller of the soil, the man whose well-being should be the prime object to be kept in mind by every statesman. Game butchery is as objectionable as any. Mr. Roosevelt, Governor Jackson, Mr. Selous, and Dr. Mearns, riding in front of the engine on the vi^ay to Kapiti From a photograph by Kermit Roosevelt Other form of wanton cruelty or barbarity; but to protest against all hunting of game is a sign of softness of head, not of soundness of heart.. Please note that these images are extracted from scanned page images that may Stock Photo

RMRR1W7H–. African game trails;. Hunting. THROUGH THE PLEISTOCENE 15 settler, the tiller of the soil, the man whose well-being should be the prime object to be kept in mind by every statesman. Game butchery is as objectionable as any. Mr. Roosevelt, Governor Jackson, Mr. Selous, and Dr. Mearns, riding in front of the engine on the vi^ay to Kapiti From a photograph by Kermit Roosevelt Other form of wanton cruelty or barbarity; but to protest against all hunting of game is a sign of softness of head, not of soundness of heart.. Please note that these images are extracted from scanned page images that may

RMRR1WD1–. African game trails. Hunting. THROUGH THE PLEISTOCENE 15 settler, the tiller of the soil, the man whose well-being should be the prime object to be kept in mind by every statesman. Game butchery is as objectionable as any. Mr. Roosevelt, Governor Jackson, Mr. Selous, and Dr. Mearns, riding in front of the engine on the way to Kapiti From a photograph by Kermit Roosevelt other form of wanton cruelty or barbarity; but to protest against all hunting of game is a sign of softness of head, not of soundness of heart.. Please note that these images are extracted from scanned page images that may ha

. Florists' review [microform]. Floriculture. The flortoto whose casds appear on the pages carrying this head, are prepared to fill oidera from other florists for local delivery on the usual basis.. s M Y T H Some of my most valued accounts here date frofti shortly after I have delivered a telegraph order. I keep this in mind when (iHing your orders. . . F. T. D 3101-09 Michigan Ave. CHICAGO. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the Stock Photo

RMRR8EN1–. Florists' review [microform]. Floriculture. The flortoto whose casds appear on the pages carrying this head, are prepared to fill oidera from other florists for local delivery on the usual basis.. s M Y T H Some of my most valued accounts here date frofti shortly after I have delivered a telegraph order. I keep this in mind when (iHing your orders. . . F. T. D 3101-09 Michigan Ave. CHICAGO. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the

. The American florist : a weekly journal for the trade. Floriculture; Florists. 366 The American Florist. Sept. J J, r The Nursery Trade | *^ AMERICAN ASSOCIATION OF NURSERYMEN. E. W. Kirkpatrick,McKinney.Tex.,PrGs. C. L. Watrous, Des Moines, la., Vice-Pres. George C. Seager, Rochester, N. Y., Sec'y. Thirtieth annual convention. West Baden Springs, Ind , June, 1905. An orchard fair to please, And pi asur for your mind, sir. You'd have—th-n plant ol trees The uut diiest you can find, uir. In birk they must bw clean, An ' fi lely grown in root, sir, Well trimmed in head. I Wten, And sturoy iu t Stock Photo

RMRP8T4N–. The American florist : a weekly journal for the trade. Floriculture; Florists. 366 The American Florist. Sept. J J, r The Nursery Trade | *^ AMERICAN ASSOCIATION OF NURSERYMEN. E. W. Kirkpatrick,McKinney.Tex.,PrGs. C. L. Watrous, Des Moines, la., Vice-Pres. George C. Seager, Rochester, N. Y., Sec'y. Thirtieth annual convention. West Baden Springs, Ind , June, 1905. An orchard fair to please, And pi asur for your mind, sir. You'd have—th-n plant ol trees The uut diiest you can find, uir. In birk they must bw clean, An ' fi lely grown in root, sir, Well trimmed in head. I Wten, And sturoy iu t

RMRCRJ4F–. The development of the chick : an introduction to embryology. Embryology; Chickens -- Embryos. HEAD-FOLD TO TWELVE SOMITES 97 the undifferentiated mass of the primitive streak. These condi- tions must be born in mind in the following description. The Neural Groove and Folds. Shortly after the formation of the head-fold the center of the medullary plate becomes sunk in the form of a deep groove beginning a short distance behind the f:-:>-^ ^. â¢/^2.' 'â m.. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloratio

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