32 METHODS OF MICROSCOPICAL RESEARCH. 



The following list will prove useful to the student 

 who desires to fit up his laboratory, or workroom, 

 with the most useful and necessary apparatus and 

 requirements for microscopical study, investigations, 

 and the making of preparations. 



A good simple microscope, which, however, may 

 be dispensed with if the student decides to work 

 entirely with the compound microscope as already 

 advised. 



A thoroughly good and firm microscope pre- 

 ferably a binocular instrument (which can also be 

 used as a monocular) with large stage, as already 

 described, coarse and fine adjustments, plane and 

 convex mirrors, and diaphragm, and having a fitting 

 under the stage to receive an achromatic condenser 

 of a simple and inexpensive kind, a spot Lens, and 

 a Polariscope. 



A Bullseye Condenser. 



Two objectives, 1J and J inch with double nose- 

 piece. 



Two Eyepieces, " A" and " C." 



A Camera lucida for drawing objects. 



A Stage micrometer divided into 100th and 

 1000th of an inch. 



A good Paraffin Lamp with metal chimney, and 

 blue glasses to fit into the chimney to moderate the 

 light. 



A retort Stand. 



A Spirit Lamp. 



A small Pestle and morfcar of Glass or agate. 



A best " Cathcart " Microtome arranged for both 

 the embedding and Ether freezing processes. 



Two Section Knives and a Plane-iron for cutting 

 Sections. 



