Observations in Connecticut. Middlefield near Middletown, summer of 1878. Being in this locality, I heard that intermittent fever was advancing eastward at the rate of ten miles a year. It had been observed in Middlefield. I was much interested to see if I could find the gemiasmas there. On examining the dripping of some bog moss, I found a plenty of them. Observations in Connecticut. New Haven. Early in the summer of 1881 I visited this city. One object of my visit was to ascertain the truth of the presence of intermittent fever there, which I had understood prevailed to such an extent that my patient, a consumptive, was afraid to return to his home in New Haven. At this time I examined the hydrant water of the city water works, and also the east shore of the West River, which seemed to be too full of sewage. I found a plenty of the Oscillatoreaceæ, but no Palmellæ. In September I revisited the city, taking with me a medical gentleman who, residing in the South, had had a larger experience with the disease than I. From the macroscopical examination he pronounced a case we examined to be ague, but I was not able to detect the plants either in the urine or blood. This might have been that I did not examine long enough. But a little later I revisited the city and explored the soil about the Whitney Water Works, whence the city gets its supply of water, and I had no difficulty in finding a good many of the plants you describe as found by you in ague cases. At a still later period my patient, whom I had set to use the microscope and instructed how to collect the ague plants, set to work himself. One day his mother brought in a film from off an ash pile that lay in the shade, and this her son found was made up of an abundance of the ague plants. By simply winding a wet bandage around the slide, Mr. A. was enabled to keep the plants in good condition until the time of my next visit, when I examined and pronounced them to be genuine plants. I should here remark that I had in examining the sputa of this patient sent to me, found some of the ague plants. He said that he had been riding near the Whitney Pond, and perceived a different odor, and thought he must have inhaled the miasm. I told him he was correct in his supposition, as no one could mistake the plants; indeed, Prof. Nunn, of Savannah, Ga., my pupil recognized it at once. This relation, though short, is to me of great importance. So long as I could not detect the gemiasmas in New Haven, I was very skeptical as to the presence of malaria in New Haven, as I thought there must be some mistake, it being a very good cloak to hide under (malaria). There is no doubt but that the name has covered lesions not belonging to it. But now the positive demonstrations above so briefly related show to my mind that the local profession have not been mistaken, and have sustained their high reputation.