Perfume and Flavor Materials of Natural Origin, first published in 1960, is the classic, authoritative reference for a vast array of natural products used in perfumes, scents, f...
Prairie Plants of Illinois is an easy-to-use guide for identifying over 100 of the most common grasses, wildflowers, and shrubs found on the prairies of Illinois and in the surr...
Northeast Ferns, Second Edition, is a full-color field guide to the ferns and lycophytes (fern relatives) found in the northeastern United States. Included are keys, description...
Tree Crops: A Permanent Agriculture, first published in 1929 and last updated in 1953 (and the edition reprinted here) is a classic, pioneering look at the use of trees for food, soil conservati...