REAGENT SET
Each worker should be provided with a set of reagent bottles (Fig. 38). Such a set may be selected according to the taste of the individual, but experience has shown that a 30 c.c. bottle with a ground-in pipette and a rubber bulb is preferable to other types. In such forms the pipettes are readily cleaned, and the rubber bulbs can be replaced when they become old and brittle. The entire set should be protected from dust by keeping it in a case, the cover of which should be closed when the set is not in use.
MEASURING CYLINDER
In order accurately to measure micro-chemical reagents, it is necessary to have a standard 50 c.c. cylinder (Fig. 39) graduated to c.c.’s. Such a cylinder should form a part of the reagent set.
Fig. 39.—Measuring CylinderFig. 40.—Staining Dish
STAINING DISHES
There is a great variety of staining dishes (Fig. 40), but for general histological work a glass staining dish with groves for holding six or more slides and a glass cover is most desirable.
CHAPTER VI
HOW TO MOUNT SPECIMENS
The method of procedure in mounting specimens for study varies according to the nature of the specimen, its preliminary treatment, and the character of the mount to be made. As to duration, mounts are either temporary or permanent.