MA.NV11ES. 61 



muscilagc lat and the animal matters, 167; saline matters, 12; 

 and iiiidecomposccl food, 70; in 1000 parts. When freed from 

 water, 1000 parts left, of ash, 132; and this yielded, carbon- 

 ate of soda, 8; sulphate of soda, with a little sulphate of po- 

 tash, and phosphate of soda, 8; phosphate of lime and 

 magnesia, and a trace of gypsum, 100; silica, 16. 



Human urine, according to the same authority gives in 

 every 1000 parts; of water, 933; urea, 30.1; uric acid, 1; free 

 lactic acid, lactate of ammonia, and inseperable animal mat- 

 ter, 17.1; mucus of the bladder, 0.3; sulphate of potash, 3.7; 

 sulphate of soda, 3.2, phosphate of soda, 2.9; phosphate of 

 ammonia, 1.6; common salt, 4.5; sal amoniac, 1.5; phosphates 

 of lime acid magnesia, with a trace of silica and of fluoride ot 

 ralcuim, 1.1. 



Urea according to Prout, gives of carbon, 19.99; oxygen, 

 26.63; hydrogen, 6.65; nitrogen, 46,65. The analysis of 

 Wcehler and Liebig differs immaterially from this. Such are 

 the materials, abounding in every ingredient that can minister 

 to the production of plants, which are suffered to waste in the 

 air, and taint its purity and healthfullness; or they are buried 

 deep in the earth beyond the reach of any useful application, 

 and even in this position, (frequently in villages, and always 

 in cities,) they pollute the waters with their disgusting and 

 poisonous effluvia. The water from one of the wells in 

 Boston examined by Dr. Jackson, gave an appreciable per- 

 centage of night soi 1! 



TREATMENT OF NIGHT SOIL. No perfect mode has yet 

 been devised of managing night soil. For compactness and 

 lacilit.y of removal we suggest, that in cities, metallic boxes 

 of sufficient capacity be placed in the privies, so arranged as 

 to be easily taken out in the rear for the purpose of emptying 

 their contents. To prevent corrosion, they should be made 

 of composite or galvanized metal. In the country where it 

 can be at once applied, tight wooden boxes may be used, with 

 hooks on the outer side, to which a team may be attached, 

 for drawing it out wherever required. The boxes should 

 have a coating at the bottom, and successively as they become 

 filled, of charcoal dust, charred peat, or gypsum. These 

 materials are cheap, compact and combine readily with the 

 volatile gasses. Sulphuric acid is more efficient than either 

 but more expensive. Quick lime will neutralize the odor 

 but it expels the enriching qualities, and if it be intended to 

 use the night soil, lime should never be mixed with it. Both, 

 the charcoal and peat condense and retain the gasses in their 



