482 FOODS AND FOOD ADULTERANTS. 



Tractive index. Both 5G76 and 5G72 show iodine numbers which would 

 lead the analyst to look for a high percentage of cotton oil. 



Leaving out these samples made from special parts of the animal, the 

 mean iodine number for the other samples would be materially reduced. 



It appears that the true number for lards of commerce would be about 

 60. 



In addition to its low specific gravity No. 5C55 is abnormal, both in 

 the slight rise of temperature it gives with sulphuric acid and its low 

 iodine number. In all three properties, viz, specific gravity, rise of 

 temperature with sulphuric acid, and iodine number, it indicates the 

 presence of lard stearine, or that it is made from some special part of 

 the fat. 



Prime steam lard. Table No. 18. 

 No. 



5629. Prime steain lard purchased in Saint Louis, Mo. Affidavit of R. A. Hamilton. 

 5039. Prime lard, steam-rendered, from D. E. Fox, taken by Chicago inspector. Affi- 

 davit of Carl Dreier.' 



5640. Prime steam lard from D. E. Fox, taken by Chicago inspector. Affidavit of 



Carl Dreier. 



5641. Prime steam lard from D. E. Fox, taken by Chicago inspector. Affidavit of 



Carl Dreier. 



5642. Prime steam lard from D. E. Fox, taken by Chicago inspector. Affidavit of 



Carl Dreier. 

 5650. Prime steam lard from John P. Squire & Co., Boston, Mass. 



5662. Prime steam lard taken by Chicago inspector. Affidavit of C. H. S. Mixer. 



5663. Same as above. 



5664. Same as above. 



5665. Same aa above. 

 ^666. Same aa above. 



