viii RESPONSE IN THE LIVING AND NON-LIVING 
These investigations were commenced in India, 
and I take this opportunity to express my grateful 
acknowledgements to the Managers of the Royal 
Institution, for the facilities offered me to complete 
them at the Davy-Faraday Laboratory. 
J. C. Boss. 
Davy-Farapay LAsoratory, Royau INstituTion, 
Lonnon: May 1902. 
