The Pleistocene of North America and its Vertebrated Animals Form the States East of the Mississippi River and Form the Canadian Provinces East of Lon

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This book by Oliver Perry Hay is a comprehensive study of the Pleistocene period in North America. It covers the various species of vertebrate animals that inhabited the region during this time, including mammoths, mastodons, and giant ground sloths. The book provides detailed descriptions of their anatomy, behavior, and distribution, and examines the way in which these animals interacted with their environment. This book is a fascinating glimpse into a prehistoric world that few people are familiar with.