CLAEIFICATION OF MILK. 187 



Table XV. — • Determinations of Solubility of Dirt.. InsohMe Dirt Re- 

 moved by Filtration. 



No. 1. Grams. 



Weight of dirt added to 500 cubic centimeters of water, ....... 1049 



Weight of dirt recovered, ........... .0889 



Weight of dirt entering solution, .......... .0160 



Per cent, of soluble dirt, 16. 



No. 2. 

 Weight of dirt added to 500 cubic centimeters of water, ....... 1000 



Weight of dirt recovered, ........... .0798 



Weight of dirt entering solution, .......... .0202 



Per cent, of soluble dirt, 20. 



No. 3. 

 Weight of dirt added to 500 cubic centimeters of water, ...... .2031 



Weight of dirt recovered, ............ 1700 



Weight of dirt entering solution, .......... .3310 



Per cent, of soluble dirt, 12. 



Table XVI. — Determinations of Solubility of Dirt. Insoluble Dirt Re- 

 moved by Clarification. 



No. 1. Grams. 



Dirt added in 1 ,000 cubic centimeters of water, ........ 5000 



Dirt recovered from clarifier, .......... .4210 



Dirt lost as soluble, ............ .0786 



Per cent, entering solution, 15. 



No. 2. 

 Dirt added in 1,000 cubic centimeters of water, ....... .5000 



Dirt recovered from clarifier, .......... .4210 



Dirt lost as soluble 0786 



Per cent, entering solution, 16. 



Dry manure is evidently more soluble than the dirt used in the preced- 

 ing tests. 



Table XVII. — Determinations of the Solubility of Dry Manure in Water. 



No. 1. Grams. 



Manure (dry) added to 1,000 cubic centimeters of water, . . . . . .2000 



Manure recovered, ............. 1535 



Manure entering solution, ........... .0465 



Per cent, of solubility, 23.3. 



No. 2. 

 Manure (dry) added to 1,000 cubic centimeters of water, ..... .2000 



Manure recovered, ............. 1520 



Manure entering solution, ........... .0480 



Per cent, of solubility, 24. 



No. 3. 

 Manure (dry) added to 1,000 cubic centimeters of water, ..... .2000 



Manure recovered, ............. 1501 



Manure entering solution, ........... .0499 



Per cent, of solubility, 24.5. 



