AMOS PEASLEE BROWN. y 



Boston and Morea coal lands in Schuylkill County, near Pottsville. 

 The survey was a private enterprise, but the map was afterward 

 published by the State Geological Survey. This work kept Brown 

 in the field until late in the autumn, while the actual drawing of the 

 map was done in Philadelphia in the winter. In the following 

 spring Mr. Lyman engaged in a survey and report on the " New 

 Red" formation of Bucks and Montgomery counties, in which 

 Brown again acted as his assistant and prepared an account of the 

 igneous rocks of the district, which accompanies Mr. Lyman's re- 

 port. His name appears on both the Bucks County map and that 

 of the Morea anthracite district as first assistant. In the early 

 autumn of 1889, before the Bucks County survey was completed, 

 Brown left Mr. Lyman to accept a position as instructor in mining 

 at the University of Pennsylvania, under his old professor, Dr. 

 Koenig, and here he remained for practically the rest of his life. 

 In 1890 he was instructor in mining and metallurgy ; in 1892 pro- 

 fessor of mineralogy and geology in the auxiliary department of 

 medicine, which he held until the abolishment of the department in 

 1898. On March 5, 1895, he became assistant professor of min- 

 eralogy and geology in the college faculty, and full professor in the 

 spring of 1903, a position which he continued to hold until the 

 spring of 1917, when he was forced to resign on account of failing 

 health. From the autumn of 1892, after Dr. Koenig's retirement 

 from the University, Brown took over the entire direction of the de- 

 partment, teaching in all branches of the subject — mineralogy, 

 geology, lithology, crystallography, mining and metallurgy. Soon 

 after his return to the university he began studying for the degree 

 of Doctor of Philosophy, which was conferred upon him at the com- 

 mencement on June 16, 1893. 



While not at all averse to field work. Brown's duties at the Uni- 

 versity were exceedingly congenial. He liked teaching, and the as- 

 sociation with other scientific men was very enjoyable, while, estab- 

 lished at his home once more, he was able to pursue his various re- 

 searches to his heart's content. 



After he returned to Philadelphia, Brown became a frequent 

 visitor to the Academy of Natural Sciences, and on January 27, 1891, 

 he became a member. For several years he was one of the most 



