NOTES ON COCONUT, COPRA, AND COCONUT OIL. 



117 



titrated with — potassium hydroxide as in tlie previous experiments. Tlie 

 result was as follows : 



Conditions. 



At once. 



2 days. 



6 days. 



Press liquor+oil 



cc. 

 7.0 

 9.7 



cc. 

 6.7 

 9.5 



cc. 

 9.2 

 12.3 







No cultures were made from these flasks. 



CREAII EXPRESSED FROM COCONUT MEAT, WITH ACETIC ACID. 



Experiment IX. — (a) The entire meat from a nut with a sprout about 30 

 centimeters long was ground in a meat grinder and pressed in a hydraulic press 

 up to 450 atmospheres, 50 cubic centimeters of the thick, cream-like press liquor, 

 25 cubic centimeters of a 1 per cent chloral hydrate and 2 per cent acetic acid 

 solution were ground to an emulsion, weighed in separate portions of 10 grams 



each and titrated in alcoholic solution with — potassium hydroxide. 



10 



Time. 

 At once 

 1 day 

 3 days 

 6 days 

 31 days 



Cubic 

 centimeters. 



1.7 



1.7 



1.9 

 2.05 

 2.15 



PRESS CAKE FROM MEAT, WITH COCONUT OIL AND ACETIC ACID. 



(h) The press cake from (a) was dried over sulphuric acid at room tem- 



jjerature and ground to a fine powder; 2.5 grams of this powder with 22.7 of 



coconut oil and 10 of acid chloral solution were ground together for two hours in 



N 

 a mortar; 10-gram samples were taken for titration with — potassium hydroxide 



with the following results: 



Time. 

 At once 

 2 days 

 7 davs 



Cubic 

 centimeters. 



1.10 

 1.08 

 1.08 



(c) A jjarallel experiment with the dried press cake from castor beans was 

 made at the same time; 2.5 grams of the cake, 22.7 of coconut oil and 10 of 

 acid chloral solution being ground together, and 10-gram portions were titrated 



with _ potassium hydroxide, with the result recorded below: 

 10 



Cubic 

 Time. centimeters. 



At once 2.7 



1 day 12.4 



2 days 15.0 

 71978 2 



