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

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

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

Presents a handbook for the identification of over five hundred species of trees by illustration and text.

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