"Wardssci090005"

Teach Students to Quickly Determine Tree Heights

A versatile marking tool.

Measures in metric units.

Used to Examine Wood Quality and Measure Growth Rates

This doublet lens system at 10X provides sharp magnification.

Determine the Diameter of Trunks by Measuring their Circumference

Battery operation makes the unit completely portable.

An absolute must when conducting field studies.

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