RICHARDS AND WREDB. — TEMPERATURE OF MANGANOUS CHLORIDE. 347 



tube (B) designed to contain the substance. This tube, and also the 

 stirrer, were made out of good insoluble glass. Because the mercury- 

 thread, which we needed to consider, was 2 centimeters shorter than 



the second tube, it was contained entirely within it when the ther- 

 mometer was raised about a centimeter above the bottom of the tube. 

 This inner tube was closed by a cork cover (C), which was bound by 

 means of two small glass tubes (t and p) to the cork stopper (K) of 

 the outer tube. The two little tubes binding these two pieces of cork 



