/l/ utility grade beef trimmed free from fat, ground vacuum-dried, defatted with benzol, 

 vacuum^dried again and powdered; contains 15-971^ N, on ash and moisture- free basis. /2/ 

 Purified from acld-preclpltated casein, dried in air at 60-70° C, and powdered; contains 

 15.25^ N, on ash and moisture- free basis. No alcohol or other organic solvents used in 

 purification process. /3/ Egg white cultured to remove natural sugar, dried at about 

 60° C, and powdered; contains ll+.21^ N, on ash and moisture-free basis. /!+/ Whole fresh 

 eggs defatted with ethylene dichloride, dried and powdered; contains 15.96^ N, on ash 

 and moisture-free basis. /5/ Spanish peanuts dried with strict temperature and moisture 

 controls, and powdered; contains 10.51^ N, on ash and moisture-free basis. /6/ Wheat gum 

 gluten flour washed several times with cold water, vacuum-dried and powdered; contains 

 ll+.5l+^ N, on ash and moisture-free basis. 



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