WARDEN, Surgeon, H. M.'s Bengal Staff, Professor of Chemistry, Calcutta Medical College. Preliminary Note?Action
of
Heat.
The
experimental enquiry, detailed in the following communication, has been undertaken at the suggestion of Professor Koch* of Berlin, with theobject of systematically ascertaining the I am well action of reagents on cobra-venom. aware that researches of a similar nature have engaged the attention of many workers, and it is, therefore, with hesitation, that I venture to undertake the investigation of a subject which has hitherto proved so practically unfruitful. Numerous antidotes have been sug-