Front matter
Reading edition
U. S. DEPARTMENT OF AGRICULTURE.
BUREAU OF PLANT INDUSTRY—BULLETIN NO. 235.
B. T. GALLOWAY, Chief of Bureau.
WILD VOLATILE-OIL PLANTS AND THEIR ECONOMIC IMPORTANCE: I.—BLACK SAGE; II.—WILD SAGE; III.—SWAMP BAY.
BY
FRANK RABAK,
Chemical Biologist, Drug-Plant, Poisonous-Plant, Physiological, and Fermentation Investigations.
Issued January 30, 1912.
WASHINGTON:
GOVERNMENT PRINTING OFFICE.
1912.