RESEARCH DEFENCE SOCIETY AND THE PLAGUE. [To THE EDITOR OF
THE "SPECTATOR."]
Six,—In connexion with the cases of plague in Suffolk, let me say that this Society has lately published an illustrated pamphlet on "Plague in India, Past and Present," by Lieutenant-Colonel Bannerman, M.D., D.Sc., Director of the Bombay Bacteriological Laboratory. It gives a full account of the experiments which proved that fleas carry the plague from rats to man ; it also gives a full account of Haffkine's preventive treatment and of the many thousands of lives that have been saved by this treatment. I am sorry that the Research Defence Society cannot afford to give away this pamphlet in, large quantities, but I shall be happy to send it to any of your readers who will send me seven stamps. I shall also be happy to send copies, on sale or return, to all book- Hon. Secretary Research Defence Society. 21 Ladbroke Square, W.