Oct. 2-Dec. 26, 1916 
Index 
553 
Page 
Melhus, I. E., Rosenbaum, J., and Schultz, 
E. S. (paper): Spongospora subterranea and 
Phoma tuberosa of the Irish Potato. 213-254 
Melilotus— 
alba , host plant of Thielavia basicola . 294 
indica, host plant of Thielavia basicola . 294 
Methane, relation of, to carbohydrates in red- 
clover hay and maize meal... 383 
Mosaic disease- 
characteristics of.484-485 
of Nicotiana iabacum, comparison with mo¬ 
saic disease of Nicotiana glutinosa . 481-486 
Musca domesiica, effect of nicotine-sulphate 
solution on. 95 
Muscle, ox, formation of hematoporphyrin in, 
during autolysis of, significance of. 44-45 
Myzus persicae — 
effect of nicotine-sulphate fumes on. 95 
passage of nicotine through the tissues of... 100- 
101,109-113 
Nasturtium. See TroPaeolus majus. 
Nectarophora granaria, syn. Macrosipkum 
granarium. 
Nemopkilia spp., host plants of Thielavia basi¬ 
cola . 283-294 
New species. 251,373-374 
Nicotiana — 
glutinosa — 
inoculations of, with mosaic factors. 482 
mosaic disease in, comparison with mo¬ 
saic disease of N. Iabacum ... 481-486 
rusttca , host plant of Thielavia basicola .... 293 
fabacum — 
analysis of the leaf of. 272 
chemical nature of grain in the leaf of.. 272-276 
correlation of grain with burning quality 
in the leaf of. 276-284 
crystalline matter in the leaf of. 271 
development of grain in the leaf of.284-286 
forms of grain in the leaf of. 270-271 
grain of the leaf of. 269-288 
host plant of Thielavia basicola . 293 
macroscopic appearance of grain in the 
leaf of. 269-270 
microscopic characters of grain, the leaf of. 270 
mosaic disease of, comparison with mo¬ 
saic disease of Nicotiana viscosum _481-486 
occurrence of grain in the leaf of.269-270 
spp.— 
characteristics of the mosaic disease of. 484-485 
host plants of Thielavia basicola . 294 
viscosum. See Errata, p. v. 
Nicotine-^ 
effect of— 
as a fumigant. 94-95 
as an insecticide.. 89-122 
as a stomach poison. 90^2 
odor and vapor of, on insects. 95-98 
on bees. 90-92 
occurrence of, in insect tissues. 98-113 
physiological effects of, on insects. 90-98 
spray solutions, effect of. 92-94 
Nicotine-sulphate sprays, relationship be¬ 
tween the wetting power and efficiency of. 389-399 
Nitrification in Semiarid Soils (paper).417-437 
Page 
Nitrification, soil— 
effect of concentrations of nitrogenous ma¬ 
terials on. 422-425 
at varying depths as affected by concentra¬ 
tion.. 425-426 
during different lengths of time,. 428-429 
in some humid and some arid soils, com¬ 
parison of.47-82 
Nitrites, accumulation of, in nitrification.. 429-433 
Onobrychis— 
crista-galli, host plant of Thielavia basicola.. 293 
viciaefolia, host plant of Thielavia basicola... 494 
Ornithopsus sativus, host plant of Thielavia 
basicola . 494 
Orthezia insignis — 
effect of nicotine-sulphate solution on. 95 
nicotine in the tissues of. 102-103 
Oryza sativa— 
assimilation of iron by. 503-525 
chlorosis of. 84 
growth of, in nutrient solutions. 83-84 
immobility of iron in. 83-87 
leaves of, effect of brushing, with iron salts. 84-85 
Ox muscle, formation of hematoporphyrin 
in, during autolysis. 41-45 
Oxalis corniculata , var. stricta, host plant of 
Thielavia basicola . 293 
Papaver nudicaule , host plant of Thielavia 
basicola . 294 
Paphiopedilum grossianum , host plant of 
Thielavia basicola . 294 
Parasitic fungi, diffusion tension of juice of 
hosts of. 258 
Pa$P alum dilatatum — 
host plant of— 
Cladosporium sp. 404 
Claviceps paspali . 401-406 
Fusarium heterosporum . 404 
Pastinica sativa , host plant of Thielavia basi¬ 
cola . 293 
Pepper. See Capsicum annuum. 
Periplaneta americana , passage of nicotine 
through the tissues of. 100 
Per sea americana — 
freezing-point lowering of the leaf sap of the 
horticultural varieties of. 261-268 
presentation of constants for. 263-266 
Petunia (hybridaf ), host plant of Thielavia 
basicola . 294 
Phaseolus — 
acutifolius, host plant of Thielavia basicola .. 294 
muUiflorus , host plant of Thielavia basicola .. 293 
vulgaris — 
host plant of Thielavia basicola . 293 
transpiration experiments with abscised 
leaves of. 53°"536 
Phillips, W. J. (paper): Macrosiphum grana¬ 
rium, the English Grain Aphis. 463-480 
Phlox drummondii, host plant of Thielavia 
basicola . 294 
Phoma tuberosa — 
description of. 251 
occurrence on Solanum tuberosum . 213-254 
