Clinical lectures on the principles and practice of medicine . fibrin. Fig. 61. Altered blood corpuscles in the fluid of an hematocele. Fig. 62. Appearance of blood once observed in a case of cholera. 250 diam. USE OF THE MICROSCOPE. 93 and existed in the proportion of one to seven of the colored loug diameter varied from the T2-Voth to die goVo**1 °^ an mcniand their transverse diameter from the 2oVotn to th^^oVo^ of an addition of acetic acid made them swell out, dissolved their externalwall, and liberated the granules. Aqua potassse rendered the wholestructure pale
Clinical lectures on the principles and practice of medicine . fibrin. Fig. 61. Altered blood corpuscles in the fluid of an hematocele. Fig. 62. Appearance of blood once observed in a case of cholera. 250 diam. USE OF THE MICROSCOPE. 93 and existed in the proportion of one to seven of the colored loug diameter varied from the T2-Voth to die goVo**1 °^ an mcniand their transverse diameter from the 2oVotn to th^^oVo^ of an addition of acetic acid made them swell out, dissolved their externalwall, and liberated the granules. Aqua potassse rendered the wholestructure paler, and a solution of muriate of soda caused them to becomemore distinct, and of smaller size.* We have seen that, in a healthy condition, the blood possesses veryfew colorless corpuscles ; but there is a certain state of that fluid I wasthe first to describe in 1845, and have since called Leucocythemia,or white-cell blood, in which they are very numerous, generally associ-ated with enlargement of the spleen or other lymphatic glands. The \9 8) £r q ;p>. Fig. 64. Fig. 65. blood then presents the characters represented in the accompanyingfigures. (Sea also the section on Leucocythemia.) It has been affirmed that the color and number of the corpusclesof the blood undergo a change in plethora, fever, jaundice, dropsies,cholera, etc., but exact observations are wanted to confirm the have never been able to satisfy myself that any such changes wereobservable in these diseases by means of the microscope. In chlorosisthe number of the blood-globules is undoubtedly diminished; but thisis determined by the size of the clot, rather than by microscopic demon-stration. Occasionally the serum of the blood presents a lactescent appear-ance ; and, on being allowed to remain at rest some hours, a whitecreamy pellicle forms on the surface. This consists of very minute par-ticles of oil, which resemble the smaller molecules found in milk, and inthe chyle. It is the white blood of
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Keywords: ., bookcentury1800, bookdecade1870, booksubjectmedicine, bookyear187
