identification

A simplified field guide to the common insects of North America.

Identifies over 224 common and conspicuous shells of North America, including full-color illustrations and and clear, precise description of each shell.

A simplified guide to the common wildflowers of northeastern and northcentral North America.

On t.p.: Field marks of all trees, shrubs, and woody vines that grow wild in the northeastern and north-central United States and in south-eastern and south-central Canada.

Brief text, map, and color illustration describe each weed and its habitat. Includes more than 145 of the most important weeds.

Over forty of the worlds most famous airliners are described and illustrated, with full specifications and a brief history of each.

Photographs and text describe eighty-eight species of wild flowers.

Explores the world of mammals, identifying their characteristics and describing individual species.

Contains 80 color plates arranged visually, by the color, shape, and overall appearance of each species.

A comprehensive guide to the nests and eggs of nearly three hundred species of birds found in the twenty-six states east of the Mississippi River.