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.

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
Oscillatoreaceae, but no Palmellae.