424 VEGETABLE FORCING 
is used for the forcing of vegetables or the growing of 
flowers. A fair idea of its fertilizing value is given by a 
number of analyses of such manures made at the Penn- 
sylvania Experiment Station, under the direction of 
Frear. For comparison the average of a number of 
analyses of fresh horse manure, with litter, is added. 
ANALYSES OF MusHRoom Manures (Per cent) 
Mushroom Moisture Organic Mineral Nitrogen Potash Phosphoric 
manures matter matter acid 
1 30.97 15.99 53.04 626 93 64 
2 4,45 25.31 70.24 -80 147 85 
3 52.94 [ 4 ] 1.22 1.41 1.14 
4 45.52 12 42.18 32 16 26 
5 38.32 30.10 31.58 1.2L 225 1.06 
6 57.05 29.84 13.11 1.17 45 1.05 
q 22.42 40.12 37.46 1.60 32 1.31 
F SENSE 33.12 25.61 41.27 99 et -90 
resh horse 
manure 72.33 23.47 4.20 -61 .565 BT 
Frear says of these analyses: 
“No detailed information accompanied the first four samples. 
No. 5 represented many different beds, filled with manure that had 
been watered and turned three to five times before benching; No. 6, 
six beds filled with manure that was well rotted, extremely short 
and very wet when benched, and that became so pasty and sticky 
that it had to be turned up to dry before spawning was attempted; 
No. 7, manure benched directly from the car, in a very wet state, and 
watered heavily two or three times before spawning. 
“It is not known, in any instance, whether the casing earth was 
at all separated from these samples. The high mineral content, at 
least of all but No. 6, indicates the presence of such earthy admixture. 
“The mushroom manures are much drier than the fresh stable 
manure. This accounts in part for their comparative concentration, 
but only in part. The relative composition of the dry matter of the 
fresh horse manure and of the average for the seven mushroom 
manures shows: 
Horse manure Mushroom manure 
per cent per cent 
Organic matter 84.60 40.37 
Mineral matter 15.40 59.63 
Nittogen 2s2—228e-0-5554 2.20 1.67 
Potash 2.04 1.15 
Phosphoric acid ~--------- 1.34 1.51 
