40 



HISTOLOGY OF MEDICINAL PLANTS 



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 



20°C 

 _5fi| 



^M 



=30 



=20 



-10 



Fig. 39. — Measuring Cylinder 



Fig. 40. — Staining Dish 



to c.c.'s. Such a cylinder should form a part of the reagent set. 



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. 



