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This collection consists of glass lantern slides and syllabuses for the course “The Materials of Engineering Construction.” It was the first in a series of four more courses in Civil Engineering, developed by Samuel Tobias Wagner and taught at the Wagner Free Institute of Science between1893 and 1950. The course discussed the properties, mining, and manufacturing of the various materials used in civil engineering, including stone, brick, cement, concrete, wood, iron, and steel. Of note in the collection are photographs of quarries and furnaces in Swedeland, PA and photos of the Phoenix Iron Co., Phoenixville, PA. less

A collection of handwritten lectures on Conchology, consisting of an Introductory lecture followed by 15 topical lectures. They were written and delivered by William Wagner, founder more of the Wagner Free Institute of Science, between 1852 and 1884. Conchology was one of Wagner's favorite topics and this was the first lecture series he wrote. He delivered it for the first time in 1852, prior to opening the Institute in 1855. The lectures' inconsistent paginations and paper sizes, along with many notations throughout, are signs of the many alterations he made to his lectures throughout the years. less

A collection of handwritten lectures on Mineralogy, consisting of two Introductory lectures and 24 topical lectures. The lecture series was written and delivered by William Wagner, more founder of the Wagner Free Institute of Science, between 1853 and 1884. Wagner delivered this lecture series for the first time in 1853, prior to the founding of the Institute in 1855. The lectures contain many notes and alterations throughout the text; evidence of his continued revisions over the years. less