"Forestry"

The classic key to identifying trees by their leaves and needles.

Easily Take Accurate Measurements in the Field

Dehydrated Preserved

Teach Students to Quickly Determine Tree Heights

Used to Examine Wood Quality and Measure Growth Rates

Estimate vegetation cover like the professionals.

This exceptional guide to North American insects is a benchmark against which all other guides are measured.

Determine the Diameter of Trunks by Measuring their Circumference

Explore dendrochronology.