sing ingredients removed from soil by, 485;
guano a manure for, 318;
manurial constituents in, 282;
manuring of, 346, 511, 513, 514;
Rothamsted experiments on growth of, 568.

Manitoba soils, nitrogen in, at various depths, 156;
rate of nitrification in, 186.

Manure, cow, 247;
farmyard, 223-292;
horse, 243;
liquid, 442-444;
meaning of word, 109;
pig, 250;
sewage, 430-441;
sheep, 251;
stable, from peat-moss, 283
--wheat-straw, 283.

Manures, action of, 61;
analysis of, interpretation of, 539-544;
application of, 474-492;
method of, 531-538; cash prices of, 555;
equal distribution of, 531;
functions of, 109, increase soil-fertility, 474;
intrinsic value of, 545;
lasting effects of, 483;
methods of valuing, 544;
minor artificial, 424-429;
mixing of, 531-538;
nitrogenous, 293-359;
phosphatic, 359-417;
potassic, 418-423;
quantities of, applied to oats, 504;
unexhausted, 549-552, 558;
units for determining commercial value of, 554;
valuation of, 539-559;
value of, deduced from experiments, 548;
various classes of, 111-114.

Manurial constituents of various foods, 282.

Manurial ingredients, unit value of, 544.

Manuring of, barley, 495-498;
beans, 525-527, 530;
cabbages, 528;
cereals, 493-504;
clover, 524;
common farm crops, 493-530;
grass, 504-510;
hops, 528;
leguminous crops, 522-528;
mangels, 511, 513, 514;
oats, 493-504;
peas, 527;
potatoes, 517-522;
roots, 510-517;
turnips, 510, 511, 513-517;
wheat, 499-501.

Maracaibo guano, nitrogen in, 330;
phosphoric acid in, 330.

Marl, phosphoric acid in, 211.

Marsh-gas from farmyard manure, 258.

Meadow-hay, fertilising ingredients removed from soil by, 485;
manurial constituents in, 282;
Rothamsted experiments on manuring of, 570.

Meadow-land, benefited by basic slag, 414, 508;
manuring of, 508;
Norfolk experiments on, 509.

Meat-meal guano, 320, 324;
composition of, 152;
imports of, 324;
manufacture of, 324;
nitrogen in, 324;
phosphoric acid in, 324;
rate of nitrification in, 192;
source of nitrogen, 152;
value of, 324.

Mechi on liquid manure, 442.

Mejillones guano, 309, 327;
phosphoric acid in, 330.

Mene, on sources of plant-nitrogen, 42.

Menhaddo, guano manufactured from, 322.

Mexico phosphate, 308, 328.

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