Charles H. Sternberg 
Hunting Dinosaurs in the Bad Lands of the Red Deer River Alberta, Canada a Sequel to the Life of a Fossil Hunter [PDF ebook] 

Whilst the greatest effort has been made to ensure the quality of this text, due to the historical nature of this content, in some rare cases there may be minor issues with legibility. Cretaceous fossil field in the world; will tell of our adventures and strenuous labor in the great gorge of the Red Deer river, 500 feet deep, and many miles in length; of the entire process of col leeting, learned by experience through so many years of ceaseless effort; also the work of prep aration in our laboratory. In 1917 it will be fifty years since I began collecting fossils, the rich results of the past few years are due to the splendid work done by my three sons of whom I am justly proud, and the assistance rendered.