Clinical diagnosis : the bacteriological, chemical, and microscopical evidence of disease . Fig. 155.—Reicherts Stand No. , with draw-tube, rack-and-pinion fine adjustment,and Abbes condenser. Of less moment is the choice of an eye-piece. In general, for everyform of investigation, except bacteriological research, eye-pieces of lowmagnifying power should be taken. For the rest, the eye-pieces II. 2 E 434 METHODS OF BACTERIOLOGICAL RESEARCH and Y. as supplied by the firms of Reichert and Zeiss will serve forall cases. The periscopic eye-pieces of Seibert and Krafit are veryexcellent.* An ob
Clinical diagnosis : the bacteriological, chemical, and microscopical evidence of disease . Fig. 155.—Reicherts Stand No. , with draw-tube, rack-and-pinion fine adjustment,and Abbes condenser. Of less moment is the choice of an eye-piece. In general, for everyform of investigation, except bacteriological research, eye-pieces of lowmagnifying power should be taken. For the rest, the eye-pieces II. 2 E 434 METHODS OF BACTERIOLOGICAL RESEARCH and Y. as supplied by the firms of Reichert and Zeiss will serve forall cases. The periscopic eye-pieces of Seibert and Krafit are veryexcellent.* An objective of crown- and flint-glass was first adopted by Dr. Schottof Jena. It is an admirable contrivance, and has become indispensablefor many purposes, as in photographing micro-organisms, where a well-defined achromatic outline is required. Zeiss has given such the nameof apochromatic objectives. The corresponding compensation eye-pieces. Fig. 156.—Abbes Condenser, as made by Zeiss. Natur Sp. Mirror. should be used with them. Their chief advantage lies in the fact thatthey give a clear and well-defined image with eye-pieces of greaterstrength than could formerly be used. Apochromatic objectives of * The author has for many years employed an instrument made by Reichert, andhe has found it to serve well in every kind of microscopical work, histological andbacteriological. Its parts are as follows:—Eye-pieces II. and IV., objectives 4, 8a,and oil-immersion T\ ; a small stand with condenser (Abbes) and price was 207 florins without the oil-immersion, which cost 107 florins. Verygood and inexpensive systems of lenses are also made by Plossl of Vienna. THE MICROSCOPE 435 excellent construction are supplied by Reichert. The images of themost delicate objects obtained with Reicherts homogeneous immersionobjective of 2 mm. focal length, and even with the working eye-piece12, are clear and distinct in
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Keywords: ., boo, bookcentury1800, bookdecade1890, booksubjectclinicalmedicine
