. Principles of human physiology : with their chief applications to pathology, hygiene, and forensic medicine : especially designed for the use of students. sible, as far at least as regards Mammalia,by the respective sizes of these objects; the lymph-globules being often aslarge as the entire corpuscles, and sometimes even larger. The circulatingfluid may be distinctly seen, in Frogs and other Reptiles, to contain whiteglobules, sometimes in great numbers; these move very slowly along thewalls of the vessel, in a stratum of fluid which seems in part adherent tothem; but they are sometimes det
. Principles of human physiology : with their chief applications to pathology, hygiene, and forensic medicine : especially designed for the use of students. sible, as far at least as regards Mammalia,by the respective sizes of these objects; the lymph-globules being often aslarge as the entire corpuscles, and sometimes even larger. The circulatingfluid may be distinctly seen, in Frogs and other Reptiles, to contain whiteglobules, sometimes in great numbers; these move very slowly along thewalls of the vessel, in a stratum of fluid which seems in part adherent tothem; but they are sometimes detached, and carried along in the rapid cur-rent of the blood-discs. These globules cannot be distinguished from thoseof the lymph drawn from the lymphatics of the same animal. In Mam-malia, however, the existence of lymph-globules in the blood is less a drop of human blood be carefully examined with a deep object-glass,one or two white globules, the average diameter of which is about l-2900ihof an inch, will generally be seen in each field of vision; they are spherical * Gulliver in note to Gtrbers Anatomy, p. 83. 408 OF NUTRITION. Fig. or nearly so, semi-transparent, and usually slightly granular on the are quickly dissolved or rendered nearly transparent by acetic acid,so that two or three nuclei are exposed; and in this respect they seem to differ from the chyle-globules, which,when treated with the same acid, aresimply rendered smaller and moredistinct. These white globulesseem to have no relation either inform or size to the blood-discs; for,%hilst the latter differ remarkably insome Mammalia (§ 572), the formerseldom vary. According to ,* these globules do not existin the fluid during its circulation,but are formed at the expense of thefibrin during its coagulation. TheAuthor learns from Dr. Barry, how-ever, that he has continually metwith the colourless globules in thecirculating blood of Mammalia; butupon their identity with the chyle
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Keywords: ., bookcentury1800, bookdecade1840, bookpubli, booksubjectphysiology
