Average Vitamin A Potency 



International Units Per Pound 

 Samples collected: 

 1943: 



April 15,781 



June 1-2 16,062 



June 28-29 19,916 



August 20,870 



Septembei 17,770 



October 19,372 



November 16,652 



Average of 1943 monthly averages 



(unweighted) 18,053 



1944: 



January* 12,998 



February 10,700 



March 12,220 



April : 9,294 



May 10^523 



Average of 1944 monthly averages 



(unweighted) 11,147 



Average, all monthly averages 



(unweighted) • 15,180 



Pennsylvania. — The Pennsylvania Agricultural Experiment Station analyzed 

 about 100 samples of butter purchased on the retail markets in the State, 

 which represented six different brands of butter. Five were nationally adver- 

 tised brands and one was the product of a local creamery. The results, which 

 have not been corrected for loss in analysis, were as follows: 



Average Vitamin A Potency 



International Units Per Pound 

 Samples collected: 

 1943: 



October 21,640 



Novembei 20,958 



December 17,524 



1944: 



January 13,494 



February 10,299 



March 9,547 



April 9,447 



May 10,057 



June 13,192 



July 17,610 



Averages (unweighted): 



January to May, inclusive 10,570 



June to December, inclusive 18,185 



All months 15,100 



lO 



