Analysis of Manures. 369 



this system of feeding, and have had an opportunity of seeing 

 at one moment the boxes full of the accumulation of some three 

 or four months' manure, invariably express their surprise at the 

 sweetness of the range of buildings ; and, in a few minutes after- 

 wards, on setting the forks to work to empty the boxes, still 

 greater surprise at the almost instantaneous evolution of volatile 

 gases on the admission of air to the dense compound below. 



No. 1. — Analysis of Box Manure and Yard JIanure. By Professor Way. 



Box Farmyard 



Manure. Manure. 



"Water, per cent 71'4 71.*0 



100 parts dried at 75 to 80 Fahr. gave of ammonia .. 2*37 1*7 



Matters soluble in water, organic and inorganic .. .. 10*7 4'6 



WHcli left on incineration a fixed residue of . . .. 4*28 2*78 



This iixed residue consisted of — 



Silica Not determined. 



Phosphoric acid 0-30 0-26 



Alkalis, potash, and soda 2-00 0-80 



For the sake of showing at a glance the difference between the two manures, 

 the results are given under another arrangement, as follows : — 



Box Farmyard 



Manure. Manure. 



Water, per cent 71-4 71-0 



100 parts dried at 75 to 80 Fahr. — 



Nitrogen equivalent to ammonia 2*37 1'7 



Organic matter removable by water 6'42 1-82 



Inorganic ditto, consisting »f — 



Phosphoric acid 0-30 0-26 



Alkalis 2-00 0-80 



Silica, a considerable quantity, not determined .. .. Lime and silica. 



Lime, a trace Not determined. 



No. 2. — Analysis of Box Manure from C. Laurence, Esq. 

 By Professor Way. 



100 parts of the manure contained — 



Water 72-33 



Organic matter 21'S0 



Mineral matter or ash 5'87 



100-00 



An approximative estimation was made of the relation between the straw 

 and the real dung (both being dry), and ihe result was as follows : — „ 



Straw 41 per cent. 



Dung rg „ 



