The photometer observations show a greater degree of sun's light on the hills than below, but there is not at either station a decided relation between the indications of this instrument and the black-bulb thermometer.
"Himalayan Journals V2."
J. D. Hooker
Later on another chemical laboratory was installed near the photometer-room, and this Dr. A. Haid had charge of."
"Edison, His Life and Inventions"
Frank Lewis Dyer and Thomas Commerford Martin
Instruments are all about, on walls, tables, and shelves, the photometer is covered up; induction coils of various capacities, with other electrical paraphernalia, lie around, almost as if the experimenter were absent for a few days but would soon return and resume his work.
"Edison, His Life and Inventions"
Frank Lewis Dyer and Thomas Commerford Martin