Human physiology (Volume 2) . as found equal to acelebrated one, taken a few years ago to Great Britain by Profes-sor Amici,£ that the particles of human blood appear to consist ofcircular, flattened, transparent cakes, their thickness being about»th part of their diameter. These, when seen singly, appear tobe nearly or quite colourless. Their edges are rounded, andbeing the thickest part, occasion a depression in the middle, which a Philos. Trans, for 1765, p. 252. •> An Essay on the Medicinal Properties of Factitious Air, &c. p. 237, Lond. 1798. c Introduct. to Med. Literature, p. 545. Ph
Human physiology (Volume 2) . as found equal to acelebrated one, taken a few years ago to Great Britain by Profes-sor Amici,£ that the particles of human blood appear to consist ofcircular, flattened, transparent cakes, their thickness being about»th part of their diameter. These, when seen singly, appear tobe nearly or quite colourless. Their edges are rounded, andbeing the thickest part, occasion a depression in the middle, which a Philos. Trans, for 1765, p. 252. •> An Essay on the Medicinal Properties of Factitious Air, &c. p. 237, Lond. 1798. c Introduct. to Med. Literature, p. 545. Philosoph. Transact, for 1811-18 ; and Lectures on Comp. Anat. iii. 4, e Annales dc Chimie, &c. xxiii. 50, 90 ; and Journal of Science and Arts, xvi. 115. f Philosoph. Magazine and Annals of Philosophy, ii. 130, Lond. 1827; also, Hodg-kin, Catalogue of the Preparations in the Anatomical Museum of Guys Hospital,introd. to sect. xi. P. i. Lond. 1829. s Edinh. Medical and Surgical Journal, xvi, Blood Corpuscles of the edible frog, Rana ctcitlcntaa, a a, b. Blood corpuscles, b. Seen Lymph corpuscle, d. Altered by dilute aceticacid. — (Wagner.) 94 CIRCULATION. exists on both surfaces. The view of these gentlemen, conse-quently, appears to resemble that of Monro. Amidst this discordance, it is difficult to know which view The belief in their consisting of circular, flattened, trans-parent bodies, with a depression in the centre, and that they con-sist .of an external envelope and of a central nucleus, the formerof which is red and gives colour to the blood, appears to have thegreatest weight of authority in its favour. The nucleus is devoidof colour, and appears to be independent of the envelope ; as,when the latter is destroyed, the central portion preserves its origi-nal shape. The nucleus is much smaller than the envelope,being, according to Dr. Young, only about one-third the length,and one-half the breadth of the entire particle. Accord
Size: 2162px × 1155px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, bookdecade1840, booksubjectphysiology, bookyear1
