traité couleur peau humaine général de cat claude nicolas (19 résultats)

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Couverture rigide. Etat : Bon. Edition originale. Amsterdam, (s.n.), 1765 ; 1 vol. pet. in-8 (19.5 x 12 cm), XIV, 191 pp., frontispice, pleine basane de l'époque, dos lisse orné, coiffes usées, tranches marbrées, rousseurs éparses, bon exemplaire. Edition originale recherchée de cet ouvrage novateur, curieux, peu courant. Il est illustré d'un frontispice gravé sur cuivre par Bacheley d'après Gravelot (rassemblant "les trois principales espèces d'hommes, le blanc, le noir et le cuivré"), d'une vignette et d'un cul-de-lampe. Cet ouvrage est basé essentiellement sur l'expérimentation et l'observation. Le Cat montre que les humeurs (sang, bile, etc.) des Noirs ne diffèrent pas de ceux des Blancs, et que par conséquent la couleur de la peau n'est pas fonction de la bile comme on le pensait alors. De plus, il a le mérite de montrer l'existence d'une analogie entre le pigment mélanique qu'il situe dans le corps muqueux et le pigment présent dans la choroïde (il le compare aussi à l'encre de seiche). La dernière partie est consacrée aux différentes possibilités de changement de couleur cutanée. De plus, et bien que cet ouvrage soit essentiellement scientifique, Le Cat rapporte sa conception de la hiérarchie supposée des races. Claude Nicolas Le Cat (1700-1768) fut chirurgien en chef de l'Hôtel-Dieu de Rouen. Chirurgien et aussi physiologiste, érudit et habile, il eut une très grande notoriété et fut anobli écuyer par le roi en 1762. REFERENCES: Heirs of Hippocrates, 853 : "In the first section of the book, Le Cat discusses the diversity of skin types in the human, the reasons for these differences, and also furnishes an analysis of the skin's structure. In the second section, he explains the reasons for different skin colors. He places special emphasis on the black skin which he likened to the ink of the cuttlefish, believing that the skin's pigmentation came from tufts of pigment bearing nerves in the skin. In the final section, Le Cat describes how skin changes from one color to another. He provides many cases histories to illustrate his points and admits that his understanding is not too secure." ; Chevallier J : The pioneers, In : Dermatology in France, p. 48: "The most interesting dermatological work [on abnormal skin colour] is the Traité de la couleur de la peau humaine, [Treatise on the colour of human skin] (1765). Le Cat studied in great detail the structure of white and black human skin and colour changes between the two. According to him, colour originated in the corpus mucosum."; Montagna W et al.: Black Skin : Structure and Function, p. 74: "In his extensive monograph on ethnic pigmentation, Le Cat (1765) confirmed Littre's findings on the skin of a black Ethiopian cadaver, and compared the properties of extracted pigment with that of the choroid of the eye. Most remarkably for that time, Le Cat found that the two pigments (which he named ethiops) were not only very similar to each other, but also had the same general features of the pigment from the ink of the squid. in many ways he pioneered the notion that the coloring matter of black skin is the same as that which occurs in other pigmented tissues of both Whites and Blacks, as well as in mammals and other living organisms." ; Rousseau GS : Le Cat and the physiology of negroes, In : Enlightenment Crossings, pp. 26-3: Le Cats experiments with various animals played an important role in his theory in the Traité de la couleur de la peau humaine. Le Cat was convinced of the necessity of microscopic investigation, unlike many of his contemporaries. He must be given credit for his intuitive leap in suspecting that bile cannot influence pigment, and thus for changing the whole course of physiological theory about skin. He must, it seems to me, also be given credit for his suspicion that the nerves play a more extensive role in the body than was though at this time."; Robins AH : Biological perspectives on human pigmentation, p. 4; Frère Ed.: Manuel du bibliographe normand II, p. 182.

LeatheBound. Etat : New. BOOKS ARE EXEMPT FROM IMPORT DUTIES AND TARIFFS; NO EXTRA CHARGES APPLY. Leatherbound edition. Condition: New. Leather Binding on Spine and Corners with Golden leaf printing on spine. Bound in genuine leather with Satin ribbon page markers and Spine with raised gilt bands. Pages: 222. A perfect gift for your loved ones. Reprinted from 1765 edition. NO changes have been made to the original text. This is NOT a retyped or an ocr'd reprint. Illustrations, Index, if any, are included in black and white. Each page is checked manually before printing. As this print on demand book is reprinted from a very old book, there could be some missing or flawed pages, but we always try to make the book as complete as possible. Fold-outs, if any, are not part of the book. If the original book was published in multiple volumes then this reprint is of only one volume, not the whole set. IF YOU WISH TO ORDER PARTICULAR VOLUME OR ALL THE VOLUMES YOU CAN CONTACT US. Resized as per current standards. Sewing binding for longer life, where the book block is actually sewn (smythe sewn/section sewn) with thread before binding which results in a more durable type of binding. Language: French Pages: 222.

LeatherBound. Etat : NEW. BOOKS ARE EXEMPT FROM IMPORT DUTIES AND TARIFFS; NO EXTRA CHARGES APPLY. Leatherbound edition. Condition: New. Leather Binding on Spine and Corners with Golden leaf printing on spine. Bound in genuine leather with Satin ribbon page markers and Spine with raised gilt bands. Pages: 226. A perfect gift for your loved ones. Reprinted from 1765 edition. NO changes have been made to the original text. This is NOT a retyped or an ocr'd reprint. Illustrations, Index, if any, are included in black and white. Each page is checked manually before printing. As this print on demand book is reprinted from a very old book, there could be some missing or flawed pages, but we always try to make the book as complete as possible. Fold-outs, if any, are not part of the book. If the original book was published in multiple volumes then this reprint is of only one volume, not the whole set. IF YOU WISH TO ORDER PARTICULAR VOLUME OR ALL THE VOLUMES YOU CAN CONTACT US. Resized as per current standards. Sewing binding for longer life, where the book block is actually sewn (smythe sewn/section sewn) with thread before binding which results in a more durable type of binding. Language: French Pages: 226.

Ouvrage divisé en trois Parties. Amsterdam (Rouen), o. D., 1765, 8°, (2), XIV, 191, (1) pp., Frontispiece von H. Gravelot, 2 Kupferstichvignetten im Text, unbeschnittenes Exemplar im weichen Pappband d. Zt. First edition of the author's interesting speculation of human skin and its many colours. It is here that Le Cat discerned the black deposits which he called "aethiops" in the nerve tissues of animals. "Claude Nicolas Le Cat's (1700-1768) treatise, like Mitchell's essay " An eassay upon the causes of the different colour of people in different climates" of 1744 , contradicts the traditional theory that bile is responsible for coloring human skin. Essentially, Le Cat's work is an extension of Malpighi's theory of skin color. From his experimental studies o the nerve cells of frogs and other animals (see Le Cat s Dissertation sur l'Existence et la Nature du Fluide des Nerfs et Son Action Berlin 1765), Le Cat discerned the presence of a pigment which he called "ethiops" (i.e. melanin). From this he deduced that human skin tissue must contain similar structures and that they may be the cause of skin color. Given me physiological association of "ethiops" with nerve tissue, it appeared to Cat that skin color could not possibly be determined by bile from the liver, pancreas, or gall bladder. While unclear of its origin and its role, he believed there was an intrinsic relation between these "ethiops" structures and the environment, noting that blacks had a greater amount than whites." Frank Spencer, Ecco Homo (1986), p.96 Le Cat was also of the opinion that peoples' skin can change during their lifetime, and revert back the next generation. He details autopsies he performed where blacks become whites after being badly burned or whites that have become black 'accidental Negroes.' Le Cat (1700-1768) was surgeon to the archbishop of Rouen. He was a master of surgery, a lecturer on anatomy, and received the title of royal professor and demonstrator. He founded the Académie Royale des Science, Belles Lettres et Arts in Rouen, becoming its life-long secretary. Besides medical themes, his writings concern mathematics, architecture and philosophy. Sabin 39627. Hirsch-H. III 709. Cohen-Ricci 611. Lewin 301. Reynaud 299. Nicht bei Waller.

LeatherBound. Etat : New. BOOKS ARE EXEMPT FROM IMPORT DUTIES AND TARIFFS; NO EXTRA CHARGES APPLY. LeatherBound edition. Condition: New. Reprinted from 1765 edition. Leather Binding on Spine and Corners with Golden leaf printing on spine. Bound in genuine leather with Satin ribbon page markers and Spine with raised gilt bands. A perfect gift for your loved ones. Pages: 218 NO changes have been made to the original text. This is NOT a retyped or an ocr'd reprint. Illustrations, Index, if any, are included in black and white. Each page is checked manually before printing. As this print on demand book is reprinted from a very old book, there could be some missing or flawed pages, but we always try to make the book as complete as possible. Fold-outs, if any, are not part of the book. If the original book was published in multiple volumes then this reprint is of only one volume, not the whole set. Sewing binding for longer life, where the book block is actually sewn (smythe sewn/section sewn) with thread before binding which results in a more durable type of binding. Pages: 218.

LeatherBound. Etat : New. BOOKS ARE EXEMPT FROM IMPORT DUTIES AND TARIFFS; NO EXTRA CHARGES APPLY. LeatherBound edition. Condition: New. Reprinted from 1765 edition. Leather Binding on Spine and Corners with Golden leaf printing on spine. NO changes have been made to the original text. This is NOT a retyped or an ocr'd reprint. Illustrations, Index, if any, are included in black and white. Each page is checked manually before printing. Pages: 224 As this print on demand book is reprinted from a very old book, there could be some missing or flawed pages, but we always try to make the book as complete as possible. Fold-outs, if any, are not part of the book. If the original book was published in multiple volumes then this reprint is of only one volume, not the whole set. Sewing binding for longer life, where the book block is actually sewn (smythe sewn/section sewn) with thread before binding which results in a more durable type of binding. Pages: 224 Language: French.

Leather Bound. Etat : New. Language: French. Presenting an Exquisite Leather-Bound Edition, expertly crafted with Original Natural Leather that gracefully adorns the spine and corners. The allure continues with Golden Leaf Printing that adds a touch of elegance, while Hand Embossing on the rounded spine lends an artistic flair. This masterpiece has been meticulously reprinted in 2024, utilizing the invaluable guidance of the original edition published many years ago in 1765. The contents of this book are presented in classic black and white. Its durability is ensured through a meticulous sewing binding technique, enhancing its longevity. Imprinted on top-tier quality paper. A team of professionals has expertly processed each page, delicately preserving its content without alteration. Due to the vintage nature of these books, every page has been manually restored for legibility. However, in certain instances, occasional blurriness, missing segments, or faint black spots might persist. We sincerely hope for your understanding of the challenges we faced with these books. Recognizing their significance for readers seeking insight into our historical treasure, we've diligently restored and reissued them. Our intention is to offer this valuable resource once again. We eagerly await your feedback, hoping that you'll find it appealing and will generously share your thoughts and recommendations. Lang: - French, Pages: - 218, Print on Demand. If it is a multi-volume set, then it is only a single volume. We are specialised in Customisation of books, if you wish to opt different color leather binding, you may contact us. This service is chargeable. Product Disclaimer: Kindly be informed that, owing to the inherent nature of leather as a natural material, minor discolorations or textural variations may be perceptible. Explore the FOLIO EDITION (12x19 Inches): Available Upon Request. 218.

Leather Bound. Etat : New. Language: francais. Presenting an Exquisite Leather-Bound Edition, expertly crafted with Original Natural Leather that gracefully adorns the spine and corners. The allure continues with Golden Leaf Printing that adds a touch of elegance, while Hand Embossing on the rounded spine lends an artistic flair. This masterpiece has been meticulously reprinted in 2024, utilizing the invaluable guidance of the original edition published many years ago in 1765. The contents of this book are presented in classic black and white. Its durability is ensured through a meticulous sewing binding technique, enhancing its longevity. Imprinted on top-tier quality paper. A team of professionals has expertly processed each page, delicately preserving its content without alteration. Due to the vintage nature of these books, every page has been manually restored for legibility. However, in certain instances, occasional blurriness, missing segments, or faint black spots might persist. We sincerely hope for your understanding of the challenges we faced with these books. Recognizing their significance for readers seeking insight into our historical treasure, we've diligently restored and reissued them. Our intention is to offer this valuable resource once again. We eagerly await your feedback, hoping that you'll find it appealing and will generously share your thoughts and recommendations. Lang: - francais, Pages: - 220, Print on Demand. If it is a multi-volume set, then it is only a single volume. We are specialised in Customisation of books, if you wish to opt different color leather binding, you may contact us. This service is chargeable. Product Disclaimer: Kindly be informed that, owing to the inherent nature of leather as a natural material, minor discolorations or textural variations may be perceptible. Explore the FOLIO EDITION (12x19 Inches): Available Upon Request. 220.

Leather Bound. Etat : New. Language: French. Presenting an Exquisite Leather-Bound Edition, expertly crafted with Original Natural Leather that gracefully adorns the spine and corners. The allure continues with Golden Leaf Printing that adds a touch of elegance, while Hand Embossing on the rounded spine lends an artistic flair. This masterpiece has been meticulously reprinted in 2024, utilizing the invaluable guidance of the original edition published many years ago in 1765. The contents of this book are presented in classic black and white. Its durability is ensured through a meticulous sewing binding technique, enhancing its longevity. Imprinted on top-tier quality paper. A team of professionals has expertly processed each page, delicately preserving its content without alteration. Due to the vintage nature of these books, every page has been manually restored for legibility. However, in certain instances, occasional blurriness, missing segments, or faint black spots might persist. We sincerely hope for your understanding of the challenges we faced with these books. Recognizing their significance for readers seeking insight into our historical treasure, we've diligently restored and reissued them. Our intention is to offer this valuable resource once again. We eagerly await your feedback, hoping that you'll find it appealing and will generously share your thoughts and recommendations. Lang: - French, Pages: - 228, Print on Demand. If it is a multi-volume set, then it is only a single volume. We are specialised in Customisation of books, if you wish to opt different color leather binding, you may contact us. This service is chargeable. Product Disclaimer: Kindly be informed that, owing to the inherent nature of leather as a natural material, minor discolorations or textural variations may be perceptible. Explore the FOLIO EDITION (12x19 Inches): Available Upon Request. 228.