I regret that circumstances do not permit me to relate in detail the work done and the observations made during the closing six months of the Manila epidemic. Up to the day of my departure from the Philippines, in July, 1914, I remained in charge of plague suppression, but the added duties of administration at San Lazaro Hospital and the coincident occurrence of a cholera epidemic prevented me from keeping a detailed record in such form as to permit reproduction here. It will therefore suffice to say that the first six months of 1914 witnessed the passing of the most threatening situation that has confronted the city of Manila in years. The record of plague rats found does not convey an accurate idea of the prevalence of rat plague by any means, for the simple reason that, when found, the rat cadavers were in such condition as to forbid bacteriologic examination; and inasmuch as the bacteriologic test of plague had been used exclusively in determining rat plague up to this time, it seemed desirable to adhere to the original method. In February we found in one of the districts, in which we undertook systematic work in consequence of a few cases of human plague, a very large number of dead rats, in and adjacent to houses which furnished human plague cases. In one building alone more than 150 rat cadavers were found during our cleaning and rat-proofing operations. It is this district concerning which the letter to the public (already quoted) was written. The methods followed in treating this new and dangerous focus of infection did not differ from those practised during the previous year, except in the matter of intensity. Forces of the cleaning and rat-catching gangs were increased and the utmost thoroughness of treatment was insisted upon. The results fully justified our policy and demonstrated again how feasible it is to fight plague successfully if adequate authority be given.