Apr. 5-June 28, 1924 
Index 
1267 
Microtus montanus yosemite — Page 
variation, individual and age. 977-1016 
See also Mouse, meadow; Mice, meadow. 
Middleton, Howard E.: Factors Influencing 
, the Binding Power of Soil Colloids. 499-513 
Milk, mfection with abortion bacteri.614,620 
Minnesota rye, abnormalities occurrence. 169 
Mistletoe, losses caused to Douglas fir in 
Idaho forests. 1144-1145 
Mixtures, silage crops, typical combinations.. 255 
Moisture- 
content, sweet corn. 426 
cottonseed, relation to germination. .. 290-291 
determination in meats, method. 339 
effect on— 
forest reproduction. 1235-1236 
seed-borne bean disease.... 489-497 
relation to citrus scab infection and devel- 
opment....._. 243-253 
Molds, corn ear, studies... 909-922 
Molting, meadow mice. 983 ,1014 
Molts, ox bots, observations.. 271-274 
Montana, Lola National Forest, Savanac 
nursery pine-seed sowing.1127-1131 
Monteith, John, Jr., Relation of Soil Tem¬ 
perature and Soil Moisture to Infection by 
Plasmodiophora brassicae .. 549-562 
Moore, William, and Campbell, F. L.: 
Studies on Nonarsenical Stomach-poison 
Insecticides... 395-402 
Morphology, honeybee larva.1167-1214 
Mortality, prenatal, in chickens, relation to 
sex ratio... 202-207 
Mountain weed, indicator of land value and 
possibilities.. 108,118,122-126 
Mouse, meadow- 
coloration and other characters, variations. 980- 
skull, description, and measurement of 
bones and teeth.... 993-1014 
variation, individual and age.. 977-1016 
Mulching strawberries for prevention of rot- 374 
Mules, parasites, key.. 666-672 
Mummy peas, crossing with Gradus rogue 
and Rice’s 330.... 1247-1248 
Muscles, bee larva, head and trunk, descrip- 
tion . 1190-1195,1207 
Muscoidae, anatomy, embryology, and meta* 
morphosis ... 8,10,14-15,29,30 
Mytophasia globosa, enemy of cambium 
curculio ___... 385,386 
Needlegrass, indicator of land value and pos¬ 
sibilities...102-105,117,120,121,1214 
Nelson, James A.: Morphology of the Honey¬ 
-bee Larva........ 1167-1214 
Nemas, parasitic, on plants and related 
forms... 1059-1066 
Nematode— 
Cylindropharynx ornata , from the zebra, 
with keys to other nematode parasites. 661-672 
new, Cylindropharynx ornata, of zebra... 661-672 
Tylenchus dipsaci, dissemination in seeds 
of certain composites. 473-478 
Nematodes— 
literature relating to. 478 
plant, literature citations..i065-1066 
Nervous systems, bee larva, brain, ventral 
nerve cord, etc... 1172-1179,1205 
Netting, poultry, use in protecting trees 
against hares.... 1137 
Niggerwool, indicator of land value and pos¬ 
sibilities. 100,101,102,104,118,120-125 
Nitrate- 
determination in— 
fertilizers, comparison of methods_ 533-536 
nitrogenous materials.. 527-539 
formation from cyanamid and urea in soils. 49-53 
nitrogen determination method_42-43 
Nitrification of phosphorus nitride_1117-1118 
Nitrogen- 
atmospheric, fertilizers, greenhouse experi- 
„ ments. 971-976 
determination in meats. 340 
importance in wheat growth and develop¬ 
ment. 393 
Nitrogenous— Page 
compounds, analysis, methods. 41-43 
materials, nitrate and ammonia determina- 
tion. .. 527-539 
Nodes, pubescent, inheritance in a cross be¬ 
tween two varieties of wheat. 841-844 
Nolina, indicator of land value and possi¬ 
bilities....ii4 f 118,120,123 
Nonarsenical stomach-poison insecticides.. 395-402 
Northoscordium bivalve , host of Uromyces 
hordei .. 1124 
Nut, pecan, scab, description and source of 
infection.. 323,325 
Nutrient solution- 
concentration, relation to orange trees, 
growth and composition..... 277-284 
molecular proportions, relation to wheat 
growth.. 387-393 
Shive's formula_ 388 
Oak, lumber, steaming for control of powder- 
post beetle. 1033-1038 
Oats— 
breeding, for resistance to stem rust, and 
results.. 706 
inoculation with stem rust, tests of resist¬ 
ance in varieties.:___ 706-709 
resistant to stem rust, list of varieties. 706 
stem rust, resistance by oat varieties. 705-720 
varieties— 
inoculation with stem rust to test resist¬ 
ance, results.. 710-718 
resistance to stem rust.. 705-720 
Ocotillo, indicator of land value and possi¬ 
bilities. 112,118,122,127 
Oenocytes, bee larva, description_ 1201-1202 
Oesophagodontus spp., parasities of Equidae, 
key. 666,667 
Onion- 
diseases, literature citations__693-694 
Fusarium bulb rot, and relation of envi¬ 
ronment to development... 683-694 
seedlings, infestation with nematodes. 477 
storage, relation of temperature to rot 
development... 691—61 
Onions, inoculation with Fusarium bulb rot, 
greenhouse experiments____6$ 
Oospora verticilloides, similarity to Fusarium 
moniliforme _ 918-920 
Orange— 
Thompson strain, progeny propagation of 
limb variations, results. 522-525 
trees, growth and composition, relation to 
nutrient solution... 277-284 
Valencia, effect of concentration of solu¬ 
tion on young trees_ 280-281 
Washington navel, quality of crop as re¬ 
lated to bud selection... 521-526 
Oranges— 
brown-spotted, from limb variations. 522 
factors determining quality of crop.... 521 
leaf sap, concentration and reaction, rela- 
tive constancy.. 277 
rind, juice, color, size, and shape, relation to 
quality.. 521 
scab infection, temperature limits_ 243 
treatment with borax to prevent rot, ex¬ 
periments. 961-968 
Ornithogalum spp., host of Pucdnia anomola, 
aecial stage.1124-1125 
Orthorrhapha larvae, notes.. 12,14 
Osmotic phenomena, relation to cell sap con¬ 
centration... 846-847 
Ovaries, honeybee queen larva... 1203 
Ox bots, molts, observations.. 271-274 
Palms, growing in desert soils, Coachella 
Valley .. 763-764 
Paloverde, indicator of land value and possi¬ 
bilities.. 112,122 
Paralysis, caused by gossypol poisoning. 194 
Paramignya monophylla, susceptibility to 
citrus canker. 228 
Parasite, Hessian fly, Platygaster vernalis , 
polyembryonic development.. 829-840 
Parasites— 
nematode- 
literature citations... 672 
of the Equidae, horse, donkey, mule, and 
zebra, key... 666-672 
