A narrative built from the experiences of a naturalist and conservationist describes the Idaho desert which lies below the Snake River, to the east of Oregon and to the north of Neveda. Larrison went there for a season with two other scientists and together they observed the many different kinds of animals, the plants and the weather and water problems of the district. Conversational and homey, the chapters sometimes have a quiet humor to them as they follow the men on their rounds- camping, observing the habits of the ground hog and the hawk, and speculating on the history of the district. Slowly, a picture of the northern desert with its few towns and irrigated farms and its stretches where a storm seems like a pinpoint of activity, comes into being. For people with an interest in the area and its surrounding regions, this should make quiet, casual reading.