THE ESSENTIAL OIL OF SEQUOIA 

 SEIIPERVIKEHS 



No work has "been done on this oil, so far as 

 in own, with the exception of that of B. H. Eowrori, 

 California ! 02, whose results were presented in a 

 thesis for the "bachelor's degree April 1902. So 

 far as he was able to ascertain "no attempts have 

 teen made up to this time (1902) to investigate 

 this oil." Ho mention of it has "been found, in the 

 literature since that date. 



The Sequoia genus comprises only two surviv- 

 ing species; (1) the Eigtree, Sequoia gigantea Dec. 

 (Washing ton! ana, Y'ellingtoniaria) growing only on the 

 western slope of the Sierra Nevada in California; 

 (2) the Kedwood, Sequoia, semp^rvirens, growing only 

 in a narrow "belt along the Calif ornian coasfc. The essen- 

 ti- 1 oil of the Eigtree was described by Lunge and 

 Steinkauler in 1880 (Eerichte, XIII, 1656 b, XIV 

 2202 b) . They obtained the oil from small trees grow- 

 ing in Zurich, Switzerland, Their results are dis- 



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