Regular Meeting, April 4th, 1864.
President in the Chair.
Present, ten members.
Professor Whitney read a paper by Major Williamson, U. S. Engineer, giving the methods of determination and results of measurement by barometer of the depression of “Death Valley” below the level of the sea, made in 1860 by the Cal. and U. S. Boundary Commission. Death Valley was found to be the “sink” of the Armagoza River, which runs near the boundary, east of Owen’s Lake. The observations, are sufficient to show that the valley is from one hundred to two hundred feet lower than the level of the sea.
Regular Meeting, April 18th, 1864.
Dr. Trask in the Chair.
Present, nine members.