1904] NEWCOMBE—KLINOSTATS AND CENTRIFUGES 431 
base 20X14%2.5°™. An iron support screwed to this base rises 
vertically and carries at its upper end a horizontal arm which holds 
a collar through which passes the half-inch shaft of the machine. 
One end of this shaft, as shown in the figures, receives a brass two- 
step pulley, and the other end the usual plate for supporting the 
object under experiment. This plate is of heavy brass 15-20°™ in 
diameter, and has cut in it three equidistant radial slots which 
Teceive the ends of brass posts. The brass posts have shoulders 
Which rest upon the brass plate on the upper side (jig. 2, a), while 
huts on the opposite side secure the posts at any desired distance from 
ea 
Fic. 3.—Worm gear (a), turn-table (6), shaft standard (¢), and shaft and 
y 
Pulleys (d). 
the center, The free ends of the posts have a thread on which runs 
* nut to be screwed down over the edge of a flower-pot or other con- 
tainer, 
The horizontal arm projecting from the support rising from the 
base is held against the vertical support by a heavy friction screw 
Passing through the vertical support and into the horizontal arm. 
This friction screw is turned by a removable steel rod passing thr ough 
the head of the screw. By manipulating the friction screw, this 
Machine may be set with its shaft at any angle desired, allowing the 
“ame klinostat to be used for revolution about a vertical, horizontal, 
*T oblique axis (jig. 2, aand b). 
