K.J. Tinkler 
The History of Geomorphology [PDF ebook] 
From Hutton to Hack: Binghamton Geomorphology Symposium 19

This book, first published in 1989, the proceedings of the 19th Binghamton Geomorphology Symposium, is the first set of essays focused on the history of the subject. The articles analyse the founding precepts of geomorphology, the early pioneers, the formation of a defined discipline, and the present state of the topic.