ZOOLOGY AND BOTANY, MICROSCOPY. ETC. 



477 



tion of adaptins^ it to the medinm-sized stands was promptly carried into 

 eflfect.S By reason of the transposition of the fine-adjustment to the 



Fig. 73. 



front of the body, the micrometer screw, unhke that of the continental 

 stands, is relieved of the weight of the upper body and the tube 



