CARE OF MICROTOMES
When not in use, microtomes should be protected from dust, and all parts liable to friction should be oiled.
Microtome knives should be honed as often as is necessary to insure a proper cutting edge. After cutting objects, the knives should be removed, cleaned, and oiled.
It should be kept clearly in mind that special knives are required for cutting collodion, paraffin, and frozen and woody sections. The cutting edges of the different knives vary considerably, as is shown in the preceding cuts.
CHAPTER V
REAGENTS
Little attention is given in the present work to micro-chemical reactions for the reason that their value has been much overrated in the past. A few reagents will be found useful, however, and these few are given, as well as their special use. They are as follows:
LIST OF REAGENTS
Distilled Water is used in the alcohol, glycerine, and water mixture as a general mounting medium. It is used when warm as a test for inulin and it is used in preparing various reagents.
Glycerine is used in preparing the alcohol, glycerine, and water mixture, in testing for aleurone grains, and as a temporary mounting medium.
Alcohol is used in preparing the alcohol, glycerine, and water mixture, in testing for volatile oils.