. A text-book of bacteriology, including the etiology and prevention of infective diseases and a short account of yeasts, and moulds, haematazoa, and psorosperms. Bacteriology. ANIMAL. MICRO-PARASITES. 603 aqueous solution of fuchsin, methyl-violet, or Bismarck-brown, or with aurantia, nigrosia, and other anihne dyes. The following method will, however, be found most instructive:—Use freshly prepared saturated solution of fuchsin or methyl-violet in absolute alcohol, and put a drop with a pipette on the centre of the prepara- tion ; do not disturb the drop-form for a few moments; then, before
. A text-book of bacteriology, including the etiology and prevention of infective diseases and a short account of yeasts, and moulds, haematazoa, and psorosperms. Bacteriology. ANIMAL. MICRO-PARASITES. 603 aqueous solution of fuchsin, methyl-violet, or Bismarck-brown, or with aurantia, nigrosia, and other anihne dyes. The following method will, however, be found most instructive:—Use freshly prepared saturated solution of fuchsin or methyl-violet in absolute alcohol, and put a drop with a pipette on the centre of the prepara- tion ; do not disturb the drop-form for a few moments; then, before the alcohol has evaporated, wash off the excess of stain. It will be found that where the drop rested the organisms will be very deeply stained, while in the surrounding area the colour will vary-in intensity. By the effect of the different degrees of staining much. Fig. 242.—Monads in Rat's Blood stained with Methyl Violet, bhowinb Membrane under Different Aspects, Blood-Cobpuscles, some Cke- NATED and Stained Discs (x 1200). may be learnt (Fig. 242). In one organism the body and entire membrane wUl be equally stained; in another the margin of the membrane only. In some the posterior stiff filament is stained, and at its base a darkly stained speck is very striking; and in other cases, again, the posterior filament is only faintly tinged, or an unstained spot occurs near its base. Hjsmatozoa of Fish. In the year 1883 Mitrophanow published a paper in which he gave an account of organisms in the blood of the mud-fish and the carp. In the blood of the mud-fish {Colitis fossilis) the organisms at the first glance looked like minute nematodes, but the appearances and changes which took place on further examination showed nothing in common with worms (Fig. 243). As a 1 per cent, salt solution had been added to the blood under examination, it occurred. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - colo
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Keywords: ., bookcentury1800, bookdecade1890, bookpublisherphila, bookyear1897
