Presents a comprehensive field guide that covers more than seven hundred species of wildflowers in North America, providing common and scientific names; floweri

A photographic field guide of North American birds provides color photographs of birds in their natural habitat and discusses their physical characteristics, ha

Presents a reference guide to over seven hundred species of trees, providing introductory essays along with individual entries on habitat, range, and descriptio

Also includes material on proturans, springtails, diplurans, harvestmen, scorpions, ticks, mites, centipedes, millipedes, crayfish, pillbugs, fairy, brine, tadp

Over 1,500 common species of wildflowers are described in this easy-to-use, illustrated identification guide.