Scope and Content From the Collection: The collection contains a letter by Henry Brooke to Editor Colliery Engineer about an article written by Otto C. Burkhart, Professor of Mining Engineering at Virginia Agricultural and Mechanical College (now Virginia Tech), written in March 1893. Brooke also writes about telescopes used in surveying and mentions the inclusion of technical drawings, which are not included in the collection. There is also a New York watermark. Also, included in the collection is an Announcement for...