"Offers valuable material not only to students of crystallography but also to those of the arts." -- The New York TimesDid you ever try to photograph a snowflake? The procedure is …
One of the finest, most extensive sources of royalty-free illustrations of the world's plants and flowers, chosen for scientific accuracy, artistic style and suitability for …
Over 600 copyright-free illustrations: wildflowers, trees, herbs, cacti, tropical blooms, garden flowers, medicinal plants, more. Captions.