On Liquid Manure. 



539 



In tlie first place, I would observe that five of the liquid 

 manures possessed the followins: specific gravities at G2^ Fahr, : — 



Liquid manure from Westonbirt 1"006 



,, Badminton I'OOT 



„ College Farm, 18. -)S .. .. 1-0014 



„ Ti|)tree Hall, clear liquid .. 1-0006 



• „ Tiptree Hall, with sediment 1-001 



The specific gravity of these five liquids corresponds with 

 the amount of solid matters which each kind contains in solution. 

 To a certain extent the specific gravity of different kinds of 

 liquid manure may serve as an indication of their relative 

 fertilising value. 



Proportion of dry Organic and Inorf/anic Matters in 1 Gallon of — 



Liquid manure from Westonbirt 



,, Badminton 



,, College Farm, 1857 .. 



,, College Farm, 1858 .. 



, , Tiptree, clear liquid . . 



, , Tiptree, with sediment 



Organic 

 Matters. 



155-44 

 2.39 -22 

 47-157 



20-59 



7-70 



50-19 



Mineral 

 Hatters. 



262-81 

 361*90 

 7.3-943 

 91'27 

 21-49 

 45*57 



418-25 

 601'12 

 121'10 

 111-86 

 29-19 

 95-76 



The difference in the amount of solid matters contained in 

 liquid manure are much greater than I expected to find them, 

 and, curiously enough, the liquid manure from Tiptree Hall, 

 which I anticipated would be very concentrated, was by far the 

 weakest of all ; the clear liquid contained in reality not more than 

 one-twentieth part of the amount of solid fertilising substances 

 which I found in the Badminton manure, and between one-fourth 

 and one-fifth of the amount contained in the Cirencester tank- 

 liquid, which I always considered very poor stuff", though it smelt 

 extremely disagreeable. 



In the next place I shall group together — 



T/te Proportion of Nitrogen, ready formed Ammonia, and total Aitrogen 

 in 1 Gallon of — 



Nitrogen Xitrogeii 

 in Organic as 



Matters. Ammonia. 



Total 

 Nitrogen. 



lilqnal 



In the Government Report by Mr. Austin, C.E,, on the Means 

 of Deodorising and Utilising the Sewage of Towns, published in 



2 N 2 



