JH
John F. W. Herschel
Sir John Frederick William Herschel, 1st Baronet was an English polymath active as a mathematician, astronomer, chemist, inventor and experimental photographer who invented the blueprint and did botanical work.
Excerpt from Wikipedia, available under CC BY-SA 4.0.
Books
A preliminary discourse on the study of natural philosophy
1987
ISBN 9780226327778
Outlines of Astronomy
1860
ISBN 9780665496868