304 



SUMMARY OF CURRENT RESEARCHES RELATING TO 



himself. The expense of a separate Microscope is thus saved as 

 any stand can be used, and the light readily applied above or below 

 the stage. 



Dr. Stein's Microscope X (fig. 48) is screwed by its foot S to a 

 wooden base C D, with two raised parts W V similar to the stand of a 



Fig. 49. 



dissecting Microscope. This base contains the wires which convey 

 the current. One lamp a is attached to the socket for the body-tube 

 by the jointed arm h and serves for the illumination of opaque objects, 

 while a second smaller one e is attached to the foot of the stand by a 

 Bimilar arm / and is intended for transparent objects. The wires to and 



