S P Langley or perhaps Samuel Pierpoint Langley
Publisher: unknown
Published: 1906 or later but no later than 1920
Place of publication: unknown most likely Allegheny, PA or Pittsburgh, PA USA
Language: eng
Format: Hardcover
Number of pages: 9
Description: The author is the famous instrument builder and astronomer John A Brashear speaking of his association with world renowned scientist Samuel P Langley who has recently died.
Table of contents: title: None