526 



On Liquid Manure. 



deficiency of phosphoric acid, be regarded as a perfect manure, 

 and should not be used alone, but always in conjunction with 

 manures rich in phosphoric acid, such as bone-dust or super- 

 phosphate. 



In the f()llowin<2; Table I have calculated the percentage com- 

 position of the solid matters that remain beliind on evaporation,, 

 and also the percentage composition of tlie mineral portion or 

 ash : — 



* Organic matters 



t Inorganic matters (ash) 



* Containing nitrogen 

 •j- Consisting of— 



Soluble silica 



Oxide of iron 



Lime 



Magnesia 



Potash 



Chloride of sodium 



Chloride of potassium 



Phosphoric acid . . 



Sulphuric acid .. 



Carbonic acid 



Percent. Cornposilion of " Per cent. Composition 

 Solid Substances in Liquiil , of Ash of Liquid 

 Manure. Manure. 



37-lG 

 C2-84 



100-00 



•59 ........... -95 



•16 -27 



1^28 2-04 



•70 1- 13 



24^82 39'. 5 1 



4^10 6-54 



17-21 27^40 



•04 1^03 



.-J-SS 8^49 



8-01 12-64 



62-84 



iOO-00 



2. — Liquid Manuie from Badminton. 



Mr, Thompson, agent to his Grace the Duke of Beaufort, 

 kindly supplied me with a specimen of liquid manure, which had 

 been kept for several years in the tank. It was much darkei^ 

 coloured than the liquid from Westonbirt, and contained a larger 

 amount of organic matter in solution than any of the other 

 varieties of liquid manure which I examined. It was nearly 

 neutral to test-paper, but on boiling gave off a strong smell of 

 ammonia. Its smell was not so offensive as the liquid trom 

 Westonbirt. 



Tlic Badminton liquid was composed chiefly of the drainings- 

 of cattle-sheds and yards. Its examination appeared to me de- 

 sirable for the sake of comparison witli the preceding sample, 

 which was print ipally composed of horse-urine. 



On evaporation to dryness on the waterbath, 7000 grains fur- 

 nished 60 112 grains of solid residue dried at 212° Falir. This 

 quantity on burning gave 36"190 grains of mineral matter or 

 ash. 



On analysing the ash it was found to contain in 100 parts 

 of— 



