FERMENTING MANUKE. 



53 



The following tabic shows the composition of the heap when 

 first put up, and also at the three subsequent periods: 



TAULK SUOWINU COMPOSITION OF THE WHOLE HEAP ; FRESH FARM-TARD MANTRE 

 (NO. I.; EXPOSED— EXPRESSED IN 13S. 



Wlien put 

 vp iVOf. 

 3, 1854. 



April 30. 

 1855. 



Weij;ht of manure iu lbs 



Aint. of water in llic manure 



Anit. of dry matter in llie manure 



Consisting of — 



Soluble ori^anic matter f 



SohiDle mineral matter J 



Insoluble oru'anic matter J 



Insoluble mineral matter (_ 



Containing nitrogen 



Equal to ammonia 



ContainiD'.,' nitrogen 



Equal lo ammonia 



Total amount of nitrojjen in manure. 

 Equal to ammonia 



The manure contains ammonia ic 

 free state .... 



The manure contains ammonia in 

 form oi salts, easily decomposed by 

 quicklime 



Total amount of organic matters. . . 



Total amount of mineral matters. . . 



2,838 



1.877.0 

 %0.1 



70.38 

 43.71 

 731.07 

 114.94 



2,026 



1.336.1 

 089.9 



86.51 



57.88 



3S9.74 



155.77 



960.1 



4.22 



5 12 



14.01 



17.02 



18.23 

 22.14 



2.49 

 801.45 

 15S.15 



689.9. 



6.07 



7.-37 



12.07 



14.65 



Aug. 23, 



1855. 



1,994 



1,505.3 



488.7 



5S.S3 



39.16 



243.22 



147.49 



488.7 



3.76 

 4.56 

 9.38 

 11.40 



Nov. 15, 

 1855. 



1,974 



1,466 5 

 507.5 



54.04 

 :».89 

 214.92 

 201.65 



507.5 



3.65 

 4. .36 

 9..38 

 11.39 



18.14 

 32.02 



.15 



1.71 

 476.25 

 213.65 



13.14 

 15.96 



.20 



.75 

 302.05 

 186.65 



13.03 

 15.75 



268.96 

 2.38.54 



" It will be remarked," says Dr. Voelcker, " that in the first ex- 

 periraental period, the fermcnlation of the dung, as might have 

 been expected, proceeded most rapidly, but that, notwithstanduig, 

 very little nitrogen was dissipated in the form of volatile ammonia ; 

 and that on the whole, the loss which the manure sustained was 

 inconsiderable when compared with the enormous waste to which 

 it was subject in the subsequent warmer and more rainy seasons of 

 the year. Thus we find at the end of April very nearly the same 

 amount of nitrogen which is contained in the fresh ; whereas, at 

 the end of August, 27 per cent of the total nitrogen, or nearly 

 one-third of the nitrogen in the manure, has been wasted in one 

 way or the other. 



" It is worthy of observation," continues Dr. Voelcker, " that, 

 during a well-regulated fermentation of dung, the loss in 

 intrinsically valuable constituents is inconsiderable, and that in 

 such a preparatory process the effic icy oj the munnre becomes greatly 

 enhanced. For certain purposes fresh dung can never take the 



