File:Urinary analysis and diagnosis by microscopical and chemical examination (1906) (14782464874).jpg

Identifier: urinaryanalysi00heit (find matches)
Title: Urinary analysis and diagnosis by microscopical and chemical examination
Year: 1906 (1900s)
Authors: Heitzmann, Louis, 1864- (from old catalog)
Subjects: Urine Diagnosis
Publisher: New York, W. Wood and company
Contributing Library: The Library of Congress
Digitizing Sponsor: The Library of Congress

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m the orifice of the urethra, butstill very abundant. They are seen both in the pus-corpuscles and lyingfree in variously sized groups. The pus-corpuscles are numerous, and mu-cus-threads in small numbers are always present. Urethral epithelia arealso usually found, and may contain groups of gonococci. Gonococci were first discovered by Neisser in the year 1879, and cul- MICRO-ORGANISMS AND ANIMAL PARASITES. 153 tivated by Bumm in 1885. They are, as a rule, found in twos, either sin-gly or in groups, with the adjacent surfaces flattened and separated by acolorless interspace, giving the so-called biscuit shape. The more or lessregular groups of diplococci are found either entirely within the pus cor-puscles or epithelia, or lying entirely free, but never half-way within andhalf-way free, though large groups, completely filling the pus-corpuscles,may slightly overlap the periphery. Again, no matter how completelythe pus-corpuscles are filled with them, the nucleus or nuclei usually re-
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® wtlf 9 Fig. 78.—Acute Gonorrhoea (X 700).G, Groups-of gonococci; GP, pus-corpuscle containing gonococci; MS, mucus-thread. main free, though here, again, individual cocci may be found upon theperiphery of the nucleus. These features, though perhaps not absolutelycharacteristic, are sufficiently so for all practical purposes. If any doubt remains about their character, a few specimens shouldbe colored with a gentian-violet solution, either a one per cent aqueoussolution (gentian violet 1 part, distilled water 99 parts), or an anilinewater solution, made by adding 5 parts of a concentrated alcoholic solu-tion to 100 parts of aniline water (aniline oil 1 part, distilled water 20parts, and filter) for a few minutes and subjected to Grams solution(pure iodine 1 part, iodide of potash 2 parts, and distilled water 300parts) for one or two minutes. The specimens are now washed in alcohol,then rinsed in water and recolored with a one or two per cent vesuvinsolution (vesuvin 1 or 2 parts,

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