U. S. DEPARTMENT OF AGRICULTURE. 



BUREAU OF PLANT INDUSTRY— BULLETIN NO. 195. 



B. T. GALLOWAY, Chief of Bureau. 



THE PRODUCTION, OF VOLATILE OILS 



AND PERFUMERY PLANTS IN 



THE UNITED STATES. 



BY^ 



FRANK RABAK, 



Chemical Biologist, Drug-Plant, Poisonous-Plant, Physio- 

 logical, AND Fermentation Investigations. 



Issued December 9, 1910. 



WASHINGTON: 



government printing office. 



1910. 



