Glass rods and tubing of sodium glass: for stirring rods, urinary pipets, etc.

Glass slides: the standard 1- by 3-inch size will answer for all work, although a few larger slides will be found convenient; those of medium thickness are preferable.

Graduates, cylindric form, several sizes.

Granite-ware basin.

Hemoglobinometer: see [pp. 143 to 147] for descriptions of the different instruments.

Hemocytometer: either Türk or Zappert ruling is desirable (Figs. [69], [70], and [72]).

Labels for slides and bottles.

Litmus paper, red and blue, Squibb's preferred.

Microscope ([Fig. 1]): should have Abbé condenser, 1- and 2-inch eye-pieces, and two-thirds, one-fifth, or long focus one-sixth and one-twelfth inch objectives. A one-half inch eye-piece, a micrometer eye-piece, and an attachable mechanical stage are very useful additions.

Petri dish or cleaned photographic plates for sputum examination.