ZOOLOGY AND BOTANY, MICROSCOPY, ETC. 
689 
round foot. It can be adjusted in height by drawing a rod connected 
with it out of the pillar and clamping with a screw; it can, also, be 
rotated about a hinge. 
Fig. 96. 
(3) Illuminating: and other Apparatus. 
Winkers Movable Object-stage.* — Dr. W. Behrens describes the new 
movable stage of the firm of R. Winkel of Gottingen. One peculiarity, 
in which it differs from most other stages, is that it is attached to the side 
of the stage-plate instead of to the pillar of the Microscope. It also 
possesses a new arrangement for fixing the object-holder on the stage. 
As seen in fig. 97, which represents the apparatus in 0*6 of its natural 
size, it is attached to the left side of the object-stage T T. For this 
purpose it possesses a plate F, with end-cheeks C C resting on the stage- 
plate, which is fastened to the edge of the stage by two clamping screws, 
the front one of which at 7c is visible in the figure. 
On the side of F, visible at S, is a swallow-tail groove in which moves 
a sliding-piece t. Through the nut g on this slide passes the screw A, 
which is attached to F at h h\ so that by turning the screw-head A the 
nut g is moved backwards or forwards, and with it the slide i. The 
amount of displacement is read off on the millimeter division on F by 
means of the index i. 
* Zeitschr. f. wiss. Mikr., ix. (1893) pp. 433-8. 
