cussed "below. This work, quoted "by Gildemeister 



and Hoffman, is the only one found on the oil of the 



Big tree. 



The trees used in this work (Redwood) were 

 all young growth, largely stump sprouts of 10 to 

 20 years, a,nd were cut in cut over forest near 

 Fort Eragg, I'endocino co., Cal. the last w=ek in 

 February 1912. A previous shipment cut during a. 

 personal visit to the woods was lost in transit. 

 The weather conditions here (and in general along 

 the coast) are a temperature of about 50 F and a 

 moist atmosphere most of the time. During the 

 two days spent at Fort Eragg a light rain fell 

 almost continuously. This may have been pertly 

 to blame for the rapid loss of the oil from the 

 trees after cutting end during storage in the 



basement of ithe Chemistry Building at Berkeley. 



-^ . 



Apparatus --The oi^ was extracted in a steam 

 still, shown in attached print. The still is of 

 copper, the upper part having a perforated bot- 

 tom on which the material extracted rests. The 

 lower part contains a steam coil attached to the 

 University Lea ting system. Vater is poured in the 

 lower part, heated by the coil, the steam generated 



