BULLETIN OF THE BUSSEY INSTITUTION. 
Muriatic acid should be made from muri- 
ate of potash, in New England, 185. 
. Mustard-plant, white mould of the, 329. 
Mycelium, or mycelial threads of the let- 
tuce mould, 328: of the potato-rot fun- 
gus, 322, 327, 336. 
Myxomycetes, list of species found near 
Boston, 430. 
NATURAL strength of land, 58, 129, 130, 
168, 311; how best to utilize, 169. 
New Jersey green sand, culture experi- 
ments with, 64, 255, 257. 
Night soil, is a cheap source of nitrogen 
and phosphates, 157 ; contains compara- 
tively little potash, 156; is a forcing 
manure, 156; is held in small esteem 
near Boston, 156 ; is sometimes used in 
conjunction with horse dung, 156. 
Nitrate of ammonia, anomalous behavior 
of, as a fertilizer, 283. 
Nitrate of potash, field experiments with, 
92, 108, 154, 385. 
Nitrate of soda, amount to be used as 
manure, 307; field experiments with, 
92, 108, 119, 138, 154, 301; liability of 
to run to waste from the land, 132, 274; 
price of, 385. 
Nitrates, formed by oxidation of the soil- 
nitrogen, 276; more easily assimilated 
by plants than ammonium salts, 283 ; 
not found upon anthracite, 402; use of, 
as plant-food, 264. 
Nitrites, not found upon anthracite, 402. 
Nitrogen, of the air, is insufficient for the 
support of highly organized plants, 284; 
is sometimes fixed by the soil, 285; 
anomalous in coal-ashes, 62, 401; price of, 
per pound, 385, note ; the quality of that 
in vegetable mould depends in part upon 
climate, 272; repeated use of one and 
‘the same portion by a starving plant, 
52, 264; in soils, 258, 267; of the soil 
made available for plants by wood- 
ashes, 271, 314; supplied to crops by 
irrigation, 273; valuation of, 17, 18, 
885, note; in vegetable mould, its im- 
rtance as plant-food, 252. 
Nitrogenous manures, analyses of, 14; 
appear to be less important in hot cli- 
mates than in cold, 273; often seem to 
produce effects disproportionate to the 
amount of manure employed, 282; are 
of little use by themselves upon Bussey 
Plain-field, 141, 163; price of, 17, 18, 
385, note ; are specially needed by grain 
crops, 283 ; use of, in Europe, 282; utility 
of using mixtures of them, 307, 310. 
Nitrogenous organic constituents of the 
soil may sometimes serve directly as 
plant-food, 280. 
Nutrition of animals, 286. 
OAK-TREE, a fungus of the, 411. 
Oats, composition of, 36; the question 
whether the oat-crop has any influence 
upon the potato rot, 331, 332, 336. 
VOL. I. 
59 
465 
7 
Oat-straw, composition of, 353. 
Oidium Tuckeri, is the conidial form of 
some species of Ascomycetes, 415; its 
occurrence in America, 416 ; may grow 
on same grape-leaf with Peronospora 
viticola, 423. 
Oil, from date-stones, 375. 
Oil-cake, fails to fertilize land in dry sea- 
sons, 278; field experiments with, 84 
93, 108 ; as food for animals, 367. 
Olive-cake, composition of, 376. 
Olive-leaves more liable than orange- 
leaves to suffer from the attacks of 
fungi, 409, and less readily protected 
from insects, 414. 
Olive-tree, disease of, in California, 404, 
is probably due primarily to an insect, 
412, 413; fungus on, 404. 
Onion disease in Connecticut, 428. 
Odspores, 324, 327; of the lettuce mould, 
329; may pass unharmed through the 
intestines of cattle, 336; of Peronospora 
infestans, 425. 
Orange-leaves, fungus on, 404; tend to 
repel fungi, because smooth, 408. 
Orange-tree, disease of, in California, 404; 
in Florida, 405; in Europe, 410; may 
be treated with alkaline soaps, 414; is 
probably due, primarily, to an insect, 
412, 413. - 
Organic matters in the soil supply nitrogen 
to plants, 252. 
Ox, thickness of the skull of, 45. 
Oyster-shell, crushed, is of no use in cer- 
tain cases, 313; flour, field experiments 
with, 83, 86, 105, 184; good effects of, 
136. 
Oyster-shell lime, is of no use in certain - 
cases, 313; field experiments with, 83, 
86, 105, 184; good eftects of, 86, 136. 
’ 
PacuyMA Cocos, or tuckahoe, analysis 
of, 370. 
Peach-stones, analysis of, 373 ; proportion 
of meat to husk, 374. 
Peach-tree, the question whether it be sub- 
ject to the black knot, 451. 
Pea hay, composition of, 3853. 
Pearlash, field experiments with, 84, 88, 
106, 140, 315; is manufactured in Ger- 
many, 394; purification of, at glass- 
works, 386. 
Pear-tree, a fungus of the, 411. 
Peas, as food for animals, 367. 
Pea straw, composition of, 353. 
Peat, analyses of, 16, 135; field experi- 
ments with, 83, 87, 105, 134; is formed 
in temperate climates, 272; growth of 
plants in, 254, 255, 265; needs to be 
mellowed before use, 272; proportion of 
nitrogen in, 267; should be moist, in 
order to act as a manure, 279. 
Peck, C. H., his account of the black knot 
of cherry and plum trees, 449; describes 
conidia of the black knot fungus, 447. 
Pectin, fodder value of, 369. 
Pectose, fodder value of, 369; in the fun- 
gus called tuckahoe, 371. 
