CLINOSTAT— Universal— Motor Driven 
This outfit consists of two essential parts. First, what is designated as the Master Clino- 
stat and second, what may be designated as the Secondary Clinostat. 
The Master Clinostat shown on the right in the illustration, consists of suitable reducing gears 
arranged so as to reduce motor speed of about 500 R. P. M. down to approximately one revolution 
in about 15 minutes. This speed is given to the shaft bearing the plate and suitable adjustable 
clamps hold a flowerpot of 3 or 4 inch size. The supporting plate may be adjusted sd that the 
plant may be rotated in either a vertical or horizontal direction, or in any intermediary direction. 
There is attached as a driving means a flexible shaft, which is arranged on one end so that it may 
be inserted in the clutch of the motor rotator, as shown in the illustration. It may also be 
attached to any other rotator or to any motor. 
The Secondary Clinostat consists of a suitable base and reducing gear, and supporting plate 
with clamp similar to the Master Clinostat and the two shafts engage and thus the Master 
Clinostat drives the Secondary Clinostat. Any number of these Secondary Clinostats may be 
thus connected and any number of experiments carried on at the same time. Some of these may 
be adjusted for rotation in a horizontal direction and some in a vertical direction. The method of 
engaging the two shafts is such that there is no binding and it is not necessary that they be exactly 
in alignment. 
Each of these instruments is mounted on a heavy iron base, handsomely japanned and all 
parts are finished in black with nickel plated trimmings. 
Cat. No. 8349 Master Clinostat as described above. Complete with flexible shaft and 
three clamps. Without flowerpot. 
Cat. No. 8349A Secondary Clinostat as described above. Complete with three clamps but 
without flowerpot. 
We can also supply you with Herbariums, Plant Presses, Collecting 
Cases, Dissecting Sets, Microscopes. Specimens, Charts, Lantern 
Slides, Balances, Glassware, Etc. 
Write fcr Catalog B — Biological Apparatus and Supplies. 
OiSi^n of Quality^ 
CA Mark of Service 
W. M. WELCH SCIENTIFIC COMPANY 
Manufacturers, Importers and Exporters of 
Scientific Apparatus and School Supplies 
1516 Orleans Street Chicago, 111. 
