When about fourteen years of age he had exhausted the educational possibilities of the ordinary schools and entered the old Central High School, which was then presided over by Alexander Dallas Bache, the most consummate master of the science of applied mathematics and the physical sciences of his time in this country, if not in the world. While at the High School, Mr. Bache was appointed to take charge of the appropriation of a million dollars by Congress to defray the cost of a series of observations on terrestrial magnetism in co-operation with similar observations along the same lines in Europe, and also for the purpose of making certain observations in meteorology. The appropriations for the last-named observations were made on the recommendations of Professor Espy. This was about 1846. While Washington was the central point of the observations, Philadelphia was practically the head-quarters, because Professor Bache and his associate. Major Bache, resided there. Observations were established at Charleston, New Orleans, and Utica, and they communicated with Toronto, the Canadian station. Professor Bache took his observers at Philadelphia from among the pupils of the High School for night work, and he had the day observers from the University. George Davidson, Charles H. Cramp, and William H. Hunter were among the number, and the observations, after being collated at Washington, were ultimately deposited at the Smithsonian Institute, and later on formed the basis of the operations of the “Signal Service Bureau.” At the time the observations were made, the magnetic telegraph had not as yet been utilized, and the course of storms was portrayed by mail after they had occurred. Not long after this period, Professor Bache was appointed to succeed Mr. Hasler as head of the Coast Survey. He invited the young men who were in the group of the magnetic installation to accompany him in his new field of labor, and Mr. Cramp was invited with the rest, but desiring to engage in ship-building he pursued that art. Mr. Davidson, who was in the magnetic observations with Mr. Cramp, and was a school-mate and life-long friend, remained on the Coast Survey under Mr. Bache, and spent the greater portion of his life on the Pacific in that capacity; and it was under his direction and control that the great Triangulation of our newly acquired possessions there from the Rocky Mountains to the coast was made by him, and said to be by scientists the greatest work in geodesy ever made by or under one man. He is now Professor of Commercial Geography in the University of California. He has filled nearly every position there that required the highest attainments in the physical sciences. The Alaska Commission, inauguration of Lick Observatory, expeditions for the observation of eclipses of the sun, are a small portion of the important positions that he has filled. His contributions to science would fill volumes.