46 



CONTROL SERIES No. 65 



Animal Tankage. 



Brands Showing a Commercial Shortage of $1 or More Per Ton. 



Associated Chemical Co. 

 Standard Wholesale Phos- 

 phate & Acid Works, Inc. 



6 88 

 6.70 



7 00 

 7 00 



5.68 

 3.57 



4.50 

 7.15 



54.41 

 33.24 



45.59 

 66.76 



(o) Fat 9.92 %, (b) fat 14.25 %, (c) fat 12.63 %. Apparently these samples were meat scraps 

 diverted from feeding channels. 



d The product analyzed 4.53% available phosphoric acid, of which .77% was soluble in 

 water, indicating the presence of superphosphate. It also analyzed 1.54% ammoniacal nitrogen 

 and 4.94% SO3, which indicates that ammonium sulfate was added at the rate of 150 pounds 

 per ton. Microscopical examination revealed the presence of fragments of cocoanut shells, water- 

 melon, apple, tomato and cucumber seeds, apple skins, bran coats from wheat, and glass, indicating 

 that the product was a mixture of garbage tankage, animal tankage, ammonium sulfate and 

 superphosphate. There was 1.94% of potassium oxide present, which evidently originated in 

 the organic vegetable matter in the garbage tankage. The product showed a commercial shortage 

 of $3.00 per ton, and a rebate of $4.30 per ton was promptly paid by the manufacturer. Only 

 one-half ton of the product was sold in the state. The manufacturer was advised that such a 

 mixture could not legally be sold in Massachusetts as animal tankage. 



e There was a commercial shortage of $3.64 per ton. Only three sacks were sold, and this 

 apparently was stock carried over from the previous season. Both chemical and microscopical 

 examination indicated that the product was a mixture of animal tankage and processed tankage. 

 The manufacturer was advised that such a product, although of fairly good quality, should not 

 be sold as animal tankage but as a mixture of animal and processed tankage. 



