APPENDIX B. 



APPAKATUS AND JtEAGENTS. 



Requisites for each Student. — Every member of the class should 

 have : 



Two or three mounted needles. (Prepared hy forcing fine needles, 

 eye foremost, into round slender sticks, e.g., old penholders.) 



A sharp penknife or a scalpel. 



A pair of small steel forceps. 



A good magnifying glass ; Coddington lenses are excellent, but 

 rather expensive. The ordinary tripod magnifier -which costs at 

 wholesale 30 or 40 cents will answer fairly well.^ 



A large note-book of unruled paper for drawing. 



A drawing pencil. 



A ruled note-book for record of experiments, etc. 



General Equipment of Apparatus. — Compound microscopes, as 

 described in Appendix A. 



It is desirable to have one for the use of each member of the 

 division. Usually it is not possible to secure nearly as many 

 instruments as this. Much good work may be done with only 

 one or two microscopes, but in this case the microscopical work 

 will liave to be done partly out of the regular class hour and part 

 of it must be carried along while the class as a whole is doing other 

 than microscopical work. 



A set of photomicrographs of some of the most important tissues 

 descrilied in the text, or of similar ones. 



^Valmsley, Fuller, & Co., 134-136 AY abash Avenue, Chicago, wUl 

 supply photomicrographs of botanical slides. IMr. AY. H. Walmsley 

 of this firm, who bears a national reputation for such work, has 

 undertaken to prepare a set of 24 negatives to illustrate the set of 



^ All aclirnniiitic iloublet, made by Leitz, superior to the Coddingtou lens, caii be 

 imported duty Iri'u for ^'1. It magnifies 8 times. 



