ZOOLOGY AND BOTANY, MICROSCOPY, ETC. 
601 
Amongst accessories of the microtome, Mayer and Schoebel’s 
apparatus for raising the object is described. This (fig. 97) consists of 
a clamping ring E, which, by means of the screw h, is fastened to the 
cylinder c carrying the object, and is prevented from turning by the 
pin S, which projects into the block K. The raising is effected by hand 
Fig. 96. 
by means of the bent lever, whose shorter arm is set beneath the ring E. 
The Borgert arrangement for raising the object* is also mentioned. 
The Fromme apparatus for the adjustment of the object is seen in fig. 98. 
The rod Z serves for attaching the holder to the microtome, and carries 
at its upper end a ball E, which is enclosed by a spherical cap of the 
plate A and clamped by the screw c. The upper plate B can be rotated 
Fig. 97. Fig. 98. 
about two axes at right angles by means of the screws a and counter- 
springs b. The plate C is clamped on a pin projecting from the plate B 
by the screw d, and carries the paraffin block 0. For celloidin pre- 
parations a boxwood plate can replace the metal plate C. On the plate 
B is a projecting piece, against the edge / of which the celloidin block 
* See this Journal, 1893, p. 801. 
