Clinical lectures on the principles and practice of medicine . llowish brown, but are muchlighter if infiltrated with earthy salts to anyFis- S89- unusual extent. They easily crumble down under firm pressure, and present a short fibrous texture, like the felt of ahat. On section with a sharp instrument, they present on the cut surfacea series of concentric lines, which are often of a lighter color harder * Pathological Transactions of London, Association Journal, No. 156, 1856. % Morbid Anatomy of the Human Gullet, Stomach, and Intestines, Edinbuigh,1811. § Monthly Journal of Me
Clinical lectures on the principles and practice of medicine . llowish brown, but are muchlighter if infiltrated with earthy salts to anyFis- S89- unusual extent. They easily crumble down under firm pressure, and present a short fibrous texture, like the felt of ahat. On section with a sharp instrument, they present on the cut surfacea series of concentric lines, which are often of a lighter color harder * Pathological Transactions of London, Association Journal, No. 156, 1856. % Morbid Anatomy of the Human Gullet, Stomach, and Intestines, Edinbuigh,1811. § Monthly Journal of Medical Science, Sept. 6, 1841. Fig. 389. Section of a remarkably-shaped intestinal concretion, a, Nucleus ofextravasated blood; b, 6, b, concentric lamina?. It weighed 14| ounces, measured 7inches in length, and was evacuated by the rectum.—Huss and Mosander.—Half thereal size. Fig. 390. Section of an intestinal concretion, with a plum stone for its nuckus, inthe Monro collection of the Edinburgh University Museum.—Real size. CONCEETIOJSTS. 281 caryopt. consistence than the general substance of the concretion. In the centremay frequently be observed a nucleus composed of some foreign body,such as a plum or cherry stone, a piece of bone, etc. Chemically, theyconsist principally of fibrous vegetable matter, and phosphate of lime,miugiino- with small proportions of water, soluble vegetable matter, fat,fgeces, and a little silica derived from the structure of the oat—(Maclagan).On examining a small fragment of these concretions under a powerof 200 diameters linear, they are seen to be made of an aggregationand mingling together of vegetable fibres, principally derived from the}sis of the oat, mingled in recent specimens with numerous irre-gular crystals and amorphousprecipitate of the phosphate oflime. The fibres vary greatly inlength and diameter, but in formare pointed at one extremity,truncated at the other, with acentral canal, which graduallydiminishes towards the poin
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Keywords: ., bookcentury1800, bookdecade1870, booksubjectmedicine, bookyear187
