It is my desire, however, to have this settled as far as can be among scientists, but for the practical uses of practicing physicians I say that far more evidence has been adduced by you in support of the cause of intermittent fever than we have in the etiology of many other diseases. I take the position that so long as no one presents a better history of the etiology of intermittent fever by facts and observations, your theory must stand. This, too, notwithstanding what may be said to the contrary. Certainly you are to be commended for having done as you have in this matter. It is one of the great rights of the profession, and duties also, that if a physician has or thinks he has anything that is new and valuable, to communicate it, and so long as he observes the rules of good society the profession are to give him a respectful hearing, even though he may have made a mistake. I do not think you had a fair hearing, and hence so far as I myself am concerned I indorse your position, and shall do so till some one comes along and gives a better demonstration. Allow me also to proceed with more evidence. Observation at West Falmouth, Mass., Sept 1, 1877. I made five observations in like manner about the marshes and bogs of this town, which is, as it were, situated on the tendo achillis of Cape Cod, Mass. In only one of these observations did I find any palmellæ like the ague plants, and they were not characteristic. Chelsea, Mass., near the Naval Hospital, September 5, 1877. Three sets of observations. In all spores were found and some sporangia, but they were not the genuine plants as far as I could judge. They were Protococcaceæ. It is not necessary to add that there are no cases of intermittent fever regarded as originating on the localities named. Still, the ancient history of New England contains some accounts of ague occurring there, but they are not regarded as entirely authentic. Observation. Lexington, Mass, September 6, 1877. Observation made in a meadow. There was no saline incrustation, and no palmellæ found. No local malaria. Observation. Cambridge, Mass. Water works on the shore of Fresh Pond. Found a few palmellæ analogous to, but not the ague palmellæ. Observation. Woburn, Mass, September 27, 1877, with Dr. J. M. Moore. Found some palmellæ, but scanty. Abundance of spores of cryptogams. Observation. Stonington, Conn., August 15, 1877. Examined a pond hole nearly opposite the railroad station on the New York Shore Line. Found abundantly the white incrustation on the surface of the soil. Here I found the spores and the sporangias of the gemiasmas verdans and rubra. Observation 2. Repetition of the last. Observation 3. I examined some of an incrustation that was copiously deposited in the same locality, which was not white or frosty, but dark brown and a dirty green. Here the spores were very abundant, and a few sporangias of the Gemiasma rubra. Ague has of late years been noted in Connecticut and Rhode Island.