ZOOLOGY AND BOTANY, MICROSCOPY, ETC. 



815 



Fig. 175 shows the Microscope as opened for use. The oblique 

 wooden blocks, which form the supports for the hands, being hinged 

 to the wooden base of the pillar, can be turned up for portability (as 

 shown in Fig. 176), so that the instrument packs into a very small 

 compass. 



Fig. 177. 



The Battle of the Stands.— It has hardly yet been generally 

 recognized that the old battle between the " Jackson model " and the 



3 H 2 



