March i, 1894.] THE TROPICAL AGRICULTURIST. 
CEYLON MANUAL OF CHEMI- 
CAL ANALYSES. 
A HANDBOOK OF ANALVSKS C(>NNK(;TKI) WITH J'HE 
INDUSTRIKS AND I'UBLIC HEALTH OK CEYLON VOR 
PLANTERS, COMMERCIAL MEN, AGRICULTURAL 
STUDENTS, AND MEMBERS OF LOCAL HOARDS. 
By M. COCHRAN, m.a., f.c.s. 
( Coutiimed from page 517- ) 
Fish Mmmre. 
Waste lisli, dried and gioiuid, when prepared 
with care, supplies a uiauure thiit is very rich 
in nitrogen, and contains also a considerable 
proportion of phosphates. It is a substance, how- j 
ever, of e.vceedingly variable composition, and j 
none of the samples prepared in India which | 
have come under my notice approaches in richness 
the higher qualities of fish manure known in 
commerce as Polar fish euano and American 
fish manure. 
The following analyses of these two high -class 
fish manures are quoted from an article by 
Mr. W. Ivison Macadam, F.L.S.C, in the Indiun 
Agriculturist : — 
Anali/ses of American Fish Matiiire. 
■ 
a 
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US 
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0 
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£ £ 2 
g eS o! ST S g 
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© « 
74 
Moisture 
' Nitrogenous Organic mat- 
ter ... 
Alkaline Salts ... 
Phosphatef 
Carbonate of Lime 
Silica ... 
Containing Nitrogen 
equal to Ammonia 
per cent. 
per cent. 
20 '52 
22-64 
57-16 
49-68 
1-98 
1-36 
1.3-52 
15-44 
5-78 
9-02 
1-04 
-96 
100-00 
100-00 
9-03 
7-96 
The following are analyses of samples of fish 
manure sold in Ceylon : — 
Moisture ... 
* Organic matter .. 
t Phosphoric acid .. 
Lime 
Carbonic acid, Mag. 
nesia alkaline Salt, 
Oxide of iron &c. 
Sand 
Containing nitrogen 
Equal to Ammonia 
Equal to tricalcic 
Phosphate 
per 
cent. 
10- 7O 
36-80 
514 
11- 00 
9-51 
•26 80 
100 00 
4- 32 
5- 25 
11-22 
per 
cent. 
14-75 
39-45 
4-52 
10-96 
9-17 
21-16 
100-00 
4- 55 
5- 52 
9-87 
(Hughes', 
per cent. 
0-24 
31-18 
5-24 
62U 
337 
48-77 
23-60 
13-32 
571 
9-42 
3-27 
44-68 
100-00 lOO OU 
4-01 
4-87 
H-44 
4-25 
5 16 
12-48 
Guano. 
Amongst manures whicli supply both nitrogen 
and phosphates, guanos are conspicuous, especially 
those from countries with a dry climate. They 
consist of the excrement and bodies of sea birds 
which have accumulated on islands or lonely sea 
boards. When the climate is dry, these deposits 
retain most of their nitrogen. They also contain 
phosphoric acid in both a soluble and an insolu- 
ble form. Peruvian and Ichaboe guanos are o 
this class. The other class of guanos, in which 
the nitrogenous substances and that portion of 
the phosphoric acid united to the alkalies, and 
therefore soluble, ha\e been washed out, has 
already lieen noticfd. They are the pliosphatic 
guauos, \alnablc for their large percentage ol 
tricalcic |>lios|)liiitc- 
\ - u.xaiMpIe.-- of reru\ iaii and Ichaboe guanos-, 
1 again quote from Mr. W. Ivison Macadam, 
in the Indian A(jrici'liuris( : — 
