"White — Specific Heats qf Silicates and Platinum. 337 



which result from almost any entirely automatic device. The 

 water raised by the splash falls back into the calorimeter from 

 the walls of an extension tube which is immediately afterward 

 removed. The heat lost in this way, and from the few drops 



Fig. 1. 



Fig. 1. Sectional view (somewhat simplified) of the furnace, swinging 

 shield (B) and calorimeter, about l/?th natural size. A porcelain tube carry- 

 ing the thermoelement (T) enters the crucible from above. Pulling the latch 

 (L) drops the furnace bottom and lower partitions (P) into the box (B), which 

 at once swings aside and automatically shunts a heavy current through the 

 wires (marked +,— ) supporting the crucible and drops the latter in the 

 (open) calorimeter below. The crucible comes to rest in the position indi- 

 cated by the dotted outline. 



which occasionally escape altogether, is certainly negligible, 

 for in one set of measurements, when 40 cc or so of splash 

 water failed altogether of return to the calorimeter, the heat 



