CHAISTGES IIST FEESH BEEF DUKING COLD STORAGE. V9 



period was but half as long ; while each increase is less than the corre- 

 spondinfij increase in Experiment No. 3, where the storage period was 

 but three-fourths as long, and where the preformed ammonia was 

 present in the original material in about the same quantity as in the 

 present experiment. 



Each portion of the stored quarter contained less total phosphorus 

 than the corresponding portion of the fresh quarter. The signifi- 

 cance of these apparent decreases is far from being clear. 



Table 53 shows the distribution of nitrogen and phosphorus ex- 

 pressed as percentages of total nitrogen and total phosphorus. 



The data for nitrogen do not demand special discussion. 



Changes in insoluble phosphorus are of the usual irregular nature 

 and their significance has not been established. 



The changes in soluble inorganic phosphorus are in the nature of 

 distinct increases. As regards the amount of preformed inorganic 

 phosphorus that it contained, the fresh material is comparable to that 

 used for Experiments Nos. 1 and 3. By comparing the increases in 

 the inorganic phosphorus ratio in the same three experiments it is 

 found that the increases during the 54-day storage period of the 

 present experiment are greater, on the whole, than the corresponding 

 increases effected by the shorter periods of storage of Experiments 

 Nos. 1 and 3, the only exception being that the change in the round in 

 this experiment is somewhat less than the corresponding change in 

 Experiment No. 3. On the whole, the results are in conformity with 

 those obtained in the autolysis experiment. 



Changes in- soluble organic phosphorus are of less significance than 

 the corresponding changes in inorganic phosphorus. 



EXPERIMENT NO, 7. 



HISTOKY OF CAKCASS. 



A " grade " Shorthorn steer 4 years old, rather rough in conforma- 

 tion and only fairly well finished, was slaughtered in the usual 

 manner. The carcass was allowed to hang 1 hour on the killing 

 floor, after which it was run into the fore cooler, where it was held 

 IG hours, and then into the main cooler, where it was held 51 hours 

 at 30'^ F. The humidity of the fore cooler was 93 per cent and that 

 of the main cooler 92 per cent of saturation. The weight of the 

 warm carcass was 814 pounds. After storage in the packing-house 

 coolers for a total period of 07 hours, the hind (jiiarters were cut from 

 the carcass, carefully wrapped, and transported to the bureau's cold- 

 storage rooms, Avhfte one hind quarter was immediately pi'cpared 

 for analysis while the othe/- was placed in cold-storage room No. 1, 

 where it was held in storage. 



