ZOOLOGY AND BOTANY, MICROSCOPY, ETC. 



813 



a better mode of attachment for a body to a limb, for it is simple, rapid 

 in use, and perfectly firm. 



Eaving described the mechanical, we will now pass on to the optical 

 part. (1) To the horizontal arm a short tube, holding a wheel of six 

 "loups," can be attached by the method first described. These "loups'' 



Fig. 95. 



vary in power from 2 to 9 diameters. (2) A compound body with a 

 fixed eyepiece, and another wheel of six lenses, giving powers from 12 to 

 38 diameters, can be attached in place of the "loups." 



The drawing apparatus is an Abbe camera. The top of the special 

 table measures 2ft. by lift., and is of pitch-pine lMn. thick. Its height 

 above the floor is 2ft., and it has three legs of oak l|in. square. The 

 two back legs are braced by an iron bar, and a second bar joins this to 

 the front leg. Beneath the table-top, and attached to it, is a cupboard, 

 which holds the Microscope cabinet. When the Microscope is used for 

 drawing, as in fig. 95, a box without a lid is laid upon its side, and its 



Dec. :JOth, 1911 3 Q 



