20 



THE COMPRESSIBILITY OF LITHIUM, SODIUM, 



Data and results concerning the compressibility of lithium, sodium, potassium, 



rubidium, and c&s'ntm. 



Caesium also was treated differently from the other metals. At 20 it 

 possesses about the consistency of butter at the same temperature, and is 

 able to transmit pressure almost as well as a liquid. It was therefore 

 allowed to solidify in a small tube essentially like that used for the rubid- 

 ium alloy, into which it had been drawn while liquid. Of course the 

 small amount of supernatant oil was exactly weighed also. 



