REPORT OF PHYSIOLOGICAL CHEMIST. 



C. L. Hare. 



Pjof. .1. F. Diiggar, Director, 



Alabama Experiinont Station, 

 Auburn, Alabama. 

 Sir: 



Herewith I submit a report of tlic investigations of the 

 Pliysiological Chemist: 



During the > ear 1916 the work of this department in general 

 outline has been along the same lines that have been pursued 

 for several years. 



Experiments in breeding cotton with seed with continuous 

 high oil content from year to year, shows promising positive 

 results. 



One or two strains of cotton have maintained a high average 

 percentage of oil in seed throughout the breeding experiments, 

 even during years when the amount of oil in cotton seed 

 generally was below the yearly averages. 



The results secured in breeding for cotton seed of high pro- 

 tein content seem to promise some measure of success. 



Experiments designed to show the effect of different kinds 

 of fertilizers upon the percentages of oil, protein and mineral 

 constituents, in cotton seed, indicate that the quantities of 

 these constituents are not materially effected by the difference 

 in fertilizers used, although the numbers of analyses made to 

 date are not sufficient to prove the indications. 



Determinations of the more important mineral constituents 

 in colton seed have so far failed to show any definite relation- 

 ship between the percentages of these constituents and the oil 

 and protein content of the seed. 



The analyses of lard from hogs from nine feeding experi- 

 ments were made during the year, showing some interesting 

 points, of the effects of some common fat producing feeds 

 upon the lard. 



The following experiments are now in process: 



A study of the lard produced by feeding the following: 



1. Corn alone. 



