464 
Infusoria, may promote fertility of the 
soil, 277. 
Insects, attack the black knot on cherry 
and plum trees, 442, 445; have been 
supposed to cause the black knot, 448; 
some kinds injurious to vegetation are 
bred in the dung of the hen, the hog, 
and man, 24; by wounding plants, ma 
supply food for various kinds of fungi, 
6 
Irrigation, employed in Italy, 131; im- 
portance of, for New England, 131. 
JoHNnson, S. W., his analyses of fertil- 
izers, 20; of leached ashes, 202; of salt- 
petre waste, 384; his estimates of the 
money value of phosphoric acid, 17, 186 ; 
his experiments upon the growth of 
maize in peat, 265. 
KAInIT, analyses of, 379; cannot properly 
be called a sulphate of potash, 380. 
Kernels of dates, peaches, and plums, 
analyses of, 373. 
LAmBs, humane destruction of, 46. 
Lampadius, Prof., his experiments with 
humus, 281. 
Law School, Mr. Bussey’s gift to the, 
3, 4. 
Lawes, Mr. J. B., his formula for a mix- 
ture of fertilizers, 188; his gift of su- 
perphosphate of lime to the trustees of 
Massachusetts Society for Promoting 
Agriculture, 170, 181; his letter to the 
treasurer of the Massachusetts Society 
for Promoting Agriculture, 181. 
Lawes and Gilbert, their analyses of bran, 
Leached ashes, analyses of, 202; contain 
but little phosphoric acid or potash, 
202-205; their fertilizing power not to 
be specially attributed to phosphoric 
acid, 204. 
Leather scraps, field experiments with, 
84, 93, 108. 
Leaves of the potato plant, their struc- 
ture in health and disease, 320. 
Lemon-tree, fungus on, 404, 411. 
Lettuce mould ( Peronospora gangliformis), 
description of, 328, 427; figure of, 328 ; 
palliatives for, 337 ; its spores are nour- 
ished in some common weeds, 328. . 
Ligneous plants, catalogue of those grow- 
ing in the Arnold Arboretum, 235, 456. 
Lime, combines with certain nitrogenous 
matters, 281; for making composts, 388, 
392; field experiments with, 83, 86, 102, 
105, 313. 
Limit of fertility, of Bussey Plain-field, 
129, 137, 142; of poor New England 
soil, 130. 
List of fungi found near Boston, 430; of 
ligneous plants in Arnold Arboretum, 
295, 456: of the Peronosporee of the 
United States, 426. 
Lithium, in anthracite, 72; in beans, 
BULLETIN OF THE BUSSEY INSTITUTION. 
black grass, bituminous coal, eel-grass, 
maize, peat, ox-eye daisy, and tobacco, 
73, 74. 
Loams, amount of nitrogen contained in 
various samples, 258, 267. 
Low farming better than high farming for 
much land in New England, 130, 168. 
Luke, Mr. E. H., provides samples of 
bran for analysis, 26. 
MAIZzE, composition of, 36, 376; growth of, 
in coal-ashes, 69, in coal-ashes and peat, 
255, in peat, 265. 
Manure, inutility of applying more than a 
soil can support, 312, 316. 
Marquart, Dr. L. C., superphosphates ob- 
tained from, 23, 172. 
Massachusetts Society for Promoting Ag- 
riculture, grants of money to the Bussey 
Institution and the Botanie Garden, 
made by its trustees, 5; inquiries for- 
merly published by its trustees, 357. 
May, Prof., his experiments with phos- 
phatic manures, 94. 
Mazzard cherry-tree, is somewhat subject 
to the black knot, 451. 
Meadow, meaning of the term, 339. 
Meadow hay, see Bog Hay. 
Meat-dust, price of, 385. 
Menhaden, manure from the fish, so called, 
19. 
Middlings (see Bran), meaning of the - 
term, 26. 
Mildew of American 
(Compare Moulds.) 
Mill-stuffs, meaning of the term, 26. 
Mixed fertilizers, objections to buying 
them ready-made, 184, 882; may yield 
better crops than farm or stable manure, 
125. 
Moisture, influence, of on the efficiency of 
animal manures, 274, 279; needed by 
New England soils, 130; small propor- 
tion of, in American hays and other dried 
forage, 346. 
Moor earth, formation of, 272. 
Morello cherry-tree is very susceptible to 
the disease called black knot, 451. 
Motion, in animals, voluntary and invol- 
untary, 41. 
Motley, Mrs. Thomas, relinquishes her 
life-estate in the Plain-field ‘in favor of 
the Bussey Institution, 5. 
Moulds, figures of some ordinary kinds 
that live upon dead matter, 332; some 
kinds feed upon excretions from the 
leaves of plants, 412; some upon gum 
exuded from diseased stems, 445. 
Mucorini, list of species of, found near 
Boston, 431. 
Mucor stolonifer, or bread mould, figure 
of, 333. 
Mulching, effects of, 279; significance of 
the practice, 312. 
Muriate of potash, analyses of, 378; bears 
transportation better than the sulphate, 
185; may be used with lime for making 
composts, 393. 
grape-vines, 415. 
