32 
MANURING EXPERIMENTS WITH PADDY RICE (SECOND YEAR). 
respective plots were mixed in a spacious beaker with 
the solution, and after two days’ standing were incorpo¬ 
rated with the plot. 
2) Night-soil, well decomposed, containing 0.505% nitrogen. 
3) Fish-manure, shime-kasu, with 9.54% nitrogen and 14.19% 
fat. 
4) Fish-manure, hoshika, with 9.92% nitrogen and 3.63% 
fat, consisting of very small fish called gomame. 
5) Blood meal, with 13.82% nitrogen. 
6) Flesh meal, containing 4.77% nitrogen. 
7) Steamed bone dust, the same kind as used in series IV ; 
it contained 3.87% nitrogen of which only 2.93% existed 
in the bony substance. The proportion of nitrogen to 
phosphoric acid in the bony part 1 : 7.9, indicates that a 
considerable part of the gelatogenous substance had been 
extracted. 
8) Crude bone dust, the same kind as used in series IV ; 
containing 4.74% nitrogen, of which 4.03% existed in the 
bony tissue. The proportion of nitrogen to phosphoric 
acid in the bony part 1 : 4.9 indicates that no gelato¬ 
genous substance had been extracted. The fertilizer 
contained only a small quantity of fat, and was in a well 
powdered condition. 
9) Peruvian guano, undissolved, but well powdered, con¬ 
taining 7.61% nitrogen. This fertilizer was tested only 
on 3 plots, to which a dose of nitrogen amounting to 4.95 
grms. per plot —5.95 kilogrms. per tan was applied. 
10) Farmyard manure prepared from a mixture of stable 
manure and night-soil, and well fermented. It contained 
i .069% nitrogen, half of which may be assumed to exist 
in the form of night-soil. 
11) Green plants, chiefly gramineæ cut immediately before 
transplanting the rice. They contained 0.474% nitrogen, 
and were applied without previous fermentation. 
12) Rice bran containing 2.07% nitrogen ; these also were 
not fermented before application. 
