Life Zones And Crop Zones Of The United States (1898) is a book written by Clinton Hart Merriam, an American biologist and naturalist. The book provides a detailed analysis of the various life zones and crop zones present in the United States. It is divided into two parts, the first part deals with the life zones of the country while the second part deals with the crop zones.The first part of the book describes the various life zones present in the...