LATER YEARS 193 



sorrowing watchers by his bedside, he passed away 

 quietly in the early morning of 23rd July, 1916. 



Ramsay's last communication to the scientific world 

 is dated 1st April, 1916, and is entitled " A Hypothesis 

 of Molecular Configuration in Three Dimensions of 

 Space." It is, however, the result of experiments made 

 some years previously. The paper is printed in the 

 Proceedings of the Royal Society, issued 1st July, 1916. 



