In line with Deserts on the March (Sears), this book deals with the problems of soil erosion the country over. Russell Lord went out for the federal Soil Conservation Service to make a survey of existing conditions, preparatory to preparing a bulletin for them. This book is the expansion of that bulletin. He has made his thesis more than the question of soil erosion; he has given us the picture of time in building the earth -- and time in destroying it, with the aid of man. There is much that is dramatic, pictorial in his story. There is a constructive program -- and a challenge to all men. But the book is diffuse and overwritten.