54 A I' I' A It ATI'S XEEDED. 



Bausch & Lomb, is very convenient, and, in case the large sliding 

 one can not be secured, it will be found serviceable for almost all 

 kinds of sectioning. Its cost does not exceed ten dollars. 



Reagents, Etc. 



The following is a list of the more general reagents used in 

 the laboratory : 



Hydrochloric, Nitric, Sulphuric, Acetic, Osmic, Chromic, Picric, 

 and Carbolic acids. 



Caustic Potash, Sugar, Potassic Iodide, Iodine, Chlor-iodide of 

 Zinc, Glycerin, Schweizer's Reagent, Glycerin Jelly, Balsam, 

 Shellac for sealing cover glasses, Turpentine, Chloroform, Ether, 

 Gun-cotton, Xylol, Paraffine, Clove Oil, Clearer. 



Haematoxylin (cryst.), Eosio, Carmine, Magnenta, and various 

 Aniline stains. 



Alcohol and distilled water should be provided in quantities 

 for all the general manipulations in which they are required. 



The students should provide themselves with glass slips with 

 ground edges, 3x1 inches, and cover-glasses of assorted sizes. ^ 

 and in. circles are most frequently needed, but serial sections 

 will require 1 inch square and a few 25x50 c. m. 



Adhesive labels, 1 inch square, will also be needed for labeling 

 the slides. For storing the mounted preparations, mailing boxes 

 holding 25 slips are most convenient for student's use. Two 

 camel's hairbrushes will be needed one, for handling the sections, 

 and the other for brushing dust from lenses, covers, etc. 



The drawing material required should be a note book of un- 

 ruled drawing paper or separate sheets cut the proper size can be 

 used. "Ledger Linen" is to be especially recommended for this 

 purpose. The sheets with notes and drawings can be fastened in 

 a cover of maniila paper by boring two holes through the backs 

 and fastening with a string. 



Two kinds of drawing pencils are needed. If ink drawings are 

 to be made, India ink and a fine pointed pen ("crow quill" or 

 Mapping pen No. 291) should be provided. 



Dissecting needles can be made by grasping a strong fine 

 pointed needle between a pair of pliers and forcing the head into 

 the end of a pine stick or a straight twig with a small pith. 



