KKKl'lNG manure: UNDKK C'OVKR. 



63 



the open air, and also of keeping it in a heaj) uiuU-r cover. Now 

 let us sec Low these methods compare with the practice of ieav 

 ing it exposed to the rains, spread out in the yard. 



On the ;jrd of Novemlnr, 1854, Dr. Va'kker weighed out 1,653 

 ll»s. of manure similar to thai UM-d in the preceding experiments, 

 and spread it out in llie yard. It was weighed April yu, and again 

 August 2;J, and November 15. 



The following table gives the actual weight of the manure at 

 the different periods, also the actual amount of the water, organic 

 matter, ash, nitrogen, etc. : 



TABLK SHOWING TRE WKIiillT AND roMPOSITIOM OP ENTIBE MAS8 OK K.\PK1U- 



MK.-^TAL MANL-KE (NO. Ml.), FREI-II KAK.M-Y.VBU MANl KL, eil'UEAlJ IN OPEN 



TAKD AT DIFFEHENT PEUIODS OK TUB YEAB. IN KATUUAL STATE. 



I "^C"''Xv>ri/ .30/ Avg. 2.5, I Nov. \:,, 

 I "/'i^"- 1855. \k-,. 'I 1800. 



Weight of maDure . 



Amount of wator in the manure ' 1,09:1. 



Amount of dry matter 



•Consistins oif soluble orjjanic matter. 



Soluble rainenl nuitter 



tlnsoluble ori^nic nintter 



Insoluble miuural matter 



•Containinff nitrogen 



Equal to ammonia 



+Ciintaininij nitroijen 



Equal to ammonia 



Total amount of nitrogen iu manure.... 



Equal to ammonia 



The manure contains ammonia in free 

 state 



Th'^ manure c )ntain9 ammonia in form 

 of salts, easil}- decomposed by quick- 

 lime " 



T>tal amount of organic matter 4fi^.M 



Total anonnt of mineral matter 9-i..'j6 



InO 



105 



.55 .28 

 111.77 ! !»8.40 

 190.93 228.80 



"One moment," said the Deacon. "These tables are a little 

 confusing. The table you have just given shows the actual weight 

 of the manure in the heap, and what it contained at difiFercnt 

 perioas." — "Yes," said I. "and the table following shows what 

 100 lbs of this manure, spread out in the yard, contained at the 

 different dates mentioned. It shows how greatly manure deterio- 

 rates by being exposed to rain, spread out on the surface of the 

 yard. The table merits careful study." 



