Clinical lectures on the principles and practice of medicine . a cleap- fluid. These bodies, in healthy milk, are perfectly spheri-cal, with dark margins, smooth and abrupt on the field of the microscope,with a clear transparent centre, which strongly refracts light. In sizethey vary in different specimens, from a point scarcely measurable up totne 47rootn or 3nVota °faa in(m iQ diameter. In excess of ether theyare dissolved or disappear; but if this re-acent be in small quantity,exosmosis takes place, and the field of the microscope is covered withloose globules of oil, of various forms. Wate
Clinical lectures on the principles and practice of medicine . a cleap- fluid. These bodies, in healthy milk, are perfectly spheri-cal, with dark margins, smooth and abrupt on the field of the microscope,with a clear transparent centre, which strongly refracts light. In sizethey vary in different specimens, from a point scarcely measurable up totne 47rootn or 3nVota °faa in(m iQ diameter. In excess of ether theyare dissolved or disappear; but if this re-acent be in small quantity,exosmosis takes place, and the field of the microscope is covered withloose globules of oil, of various forms. Water causes the milk globules * The mode of examining all fluids is the same, and is described p. 84. Fig. 52. Minute confervoid filaments springing from an altered epithelial scale,scraped from the surface of a cancroid ulcer of the tongue (Leptothrix bucccalis). Fig. 53. Confervoid filaments and sporules, in the exudation on the mouth andgums, constituting muguet in infants. Fig 54. Fringe-like epithelium, from the surface of an ulcer on the tongue. 250 90 EXAMINATION OF THE PATIENT. to swell out, but very slightly. Acetic acid coagulates the caseous fluidiu which they swim, and causes the globules to be aggregated together inmasses. Several of the globules also exhibit, under the action of this re-agent, a certain flaccidity, and readily run into one another underpressure. These globules consist of a delicate envelope of casein, enclosing adrop of oil or butter. The membrane keeps them separate, so long as itis intact; but, dissolved by meaus of acetic acid, or ruptured by heat ormechanical violence (as in the churn), the butter is readily separated andcollected. Cream is composed of the larger of these globules, which,owing to their low specific gravity, float on the surface of milk whenallowed to repose. The richness of milk is determined by the quantity of these examination of cows and human milk will at once show that theformer contains a larger number tha
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Keywords: ., bookcentury1800, bookdecade1870, booksubjectmedicine, bookyear187
