Pennsylvania Tunnel and Terminal Railroad Company
Found in 1 Collection or Record:
Astronomical position and other topics, 1906-1911
Primarily correspondence between E. O. Hovey and the U. S. Coast and Geodetic Survey, U. S. Geological Survey, and Pennsylvania Tunnel and Terminal Railroad Company. Topics include the establishment of an astronomical position on museum grounds, classification of geological materials, and access to a tunnel for scientific studies. Contains "Index to Letters" (1 p.) for items up to and including June 29, 1911.