It is the purpose of this publication to assist those interested in medicinal plant identification and to furnish other useful information in connection with the work.

This title is part of UC Press's Voices Revived program, which commemorates University of California Press’s mission to seek out and cultivate the brightest minds and give them voice, reach, and impact. Drawing on a backlist dating to 1893, Voices Revived makes high-quality, peer-reviewed scholarship accessible once again using print-on-demand technology. This title was originally published in 1958.

This publication provides a section which gives a brief description of the various offices within the United States Department of Agriculture and their functions, followed by a directory, and an Index of Names.