412 BOTANICAL GAZETTE. 
that is required. While this does very well for dissecting, some 
of us are not willing to remove delicate sections with them, and 
every student should learn from the first to handle all his sections 
with the greatest care so that it may become second nature. For 
this purpose the most convenient plan is to fasten a small camel’s 
hair brush to the other end of a dissecting needle. The brush 
should be one easily drawn to a point. The advantage of having 
it fastened to a dissecting needle is that when not in use the needle 
may be kept stuck in the table and the brush thus out of the 
ehance of dust. In this way the most delicate sections can be 
aoe without injury and nice habits of manipulation culti- 
vated. 
prefer to use bottles with ground glass stoppers and small pip- 
ettes, such as can be purchased at the drug stores as “ eye-drop- 
pers,” which do not cost more than 5 cents each. The ordinary 
ryocuts upon the table are Iodine, Alcohol, Potassic Hydrate, 
Glycerine, and Water; other reagents, such as acids and staining 
fluids, not being distributed individually, but supplied as needed. 
the pipette be ready for use. Several are troubled with the scum 
that collects on the potassic hydrate. The best remedy for this 18 
to supply but small amounts of the reagent and when the scum 
SHELF ACCESSORIES.— Bell-jars. For covering specimens 
and cultures these are indispensable. any cases tumblers 
will answer every purpose, but there should be larger bell-jars, 
and some with ground bottoms. 
