11 



The following results by F. C. Weber of this laboratory confirm 

 these conclusions and show that the Dalican method of determining 

 the titer is affected to a much greater degree by room temperature 

 than the Wolfbauer method, as might be expected; but Weber's 

 results also indicate that a standard temperature for fats having a low 

 titer is desirable for the Wolfbauer method of stirring as well. 



TABLE VIII. Effect of room temperature on titer (F. C. Weber}. 

 [Figures are the average of several determinations.] 



K. D. Oilar reached much the same conclusion as to the effect of 

 room temperature on the titer, but does not find that the Wolfbauer 

 method gives better results than the Dalican. 



TABLE IX Effect of room temperature on liter (Jt. D. Oilar}. 



n A different sample of cotton-seed oil was used in each of these determinations. 



David Wesson takes much the same position as the result of his own 

 work and that of his assistants, and his conclusions are quoted from 

 the report of Mr. Ayer, chemist in charge of the laboratory at 

 Savannah, Ga. : 



1. The method of saponification makes practically no difference in the resulting 

 titer. We prefer the Wolfbauer method as being surer, more rapid, less expensive, 

 and less liable to accident from fire. 



2. We prefer to dissolve the soap in hot water and throw out the fatty acids, as in 

 the Dalican method, rather than to follow the method laid down in the Wolfbauer 

 procedure. 



3. The Wolfbauer stirring gives results from 0.5 to 1.5 higher than the Dalican. 

 This is to be expected, as in the latter case a large portion of the fatty acids has 

 solidified and' cooled below the temperature of the remaining liquid fat, and this, 



