﻿312 



The Philippive Journal of Science 



1914 



Fig. 1. Pipette holder containing a pipette (pip), cl, clamp by which the holder is fastened to the metal 

 plate pb; ud, up-and-down adjustment governed by screw s; rl, right-and-left adjustment governed by 

 screw «' ; g, groove in which the pipette is held by the plate tp; ic, isolating chamber ; H, hood of 

 pasteboard for protecting the end of the isolation chamber. 



s:._E 



Fig. 2. Top of pipette holder, rl, right-and-left adjustment 

 governed by screw «'; g, groove in which the pipette is 

 held by plate tp and set screw ss. 



