522 JOURNAL OF THE ROYAL HORTICULTURAL SOCIETY. 
Moisture . . . . 
Organic matter 
Mineral matters insoluble in water 
Mineral matters soluble in water 
Potash (total) 
Equal to sulphate of potash 
A 
B 
Q 
Per cent. 
Per cent. 
Per cent. 
3-38 
4*81 
787 
7-06 
5'3I 
802 
72*40 
68*50 
71*50 
I7*l6 
21*38 
I2*6l 
lOO'OO 
IOO'OO 
IOO'OO 
13-35 
16*98 
13*16 
24-71 
31-43 
24-36 
These all contained distinctly good amounts of potash, and, as the 
price in each case was only 7s. 6d. per unit of sulphate of potash, they 
were quite worth getting in these times when potash is so much re- 
quired and supplies are so scarce. 
At the same time they were all of them markedly alkaline, though 
both chloride and sulphate of potash were present, and it would not do 
to use them mixed with sulphate of ammonia or other ammonia-con- 
taining manures, as ammonia would be thereby lost. 
Another material sent for estimation of potash was a waste vegetable 
product, and this analysed as follows : 
Moisture. 
Organic matter 
♦Phosphoric acid 
Lime . . . 
Oxide of iron, alkalies, &c 4 
Siliceous matter 
Per cent. 
12*64 
76*65 
1*04 
0*83 
5-04 
3-80 
*Equal to phosphate of lime 
Nitrogen 
Equal to ammonia 
Potash .... 
2*27 
2*95 
3-58 
2*07 
4. Destructor Waste. — The sample sent me was ash from a de- 
structor in which the excreta of hospital patients was incinerated, and 
with it was mixed clinker and other waste material. The analysis 
was : 
Per cent. 
Moisture i-6o 
Organic matter, carbon, See, . . . 4*87 
Oxide of iron and alumina 
♦Phosphoric acid 
Lime 
Potash . 
Soda 
Magnesia 
Carbonic acid, chlorine, &c 
Insoluble siliceous matter. 
20*17 
3*22 
7*69 
i*54 
2*37 
1*06 
2-63 
54-85 
IOO'OO 
•Equal to phosphate of lime 
Nitrogen 
Equal to ammonia . 
7-03 
0*06 
0*07 
This was distinctly richer than ordinary destructor waste, the 
amounts of phosphate of lime and potash being sufficiently high to 
