654 



Journal of Agricultural Research 



Vol. X 



Page 



Moore, W. (paper): Volatility of Organic 

 Compounds as an Index of the Toxicity of 

 their Vapors to Insects 365-371 



Moore, W., and Graham, S. A. (paper): A 

 Neglected Factor in the Use of Nicotine 

 Sulphate as a Spray 47-50 



Mortar, sand, effect of grading on — 



compression of 271-274 



hardness of 267-269 



tension of 271-274 



toughness of 270-271 



Mosaic disease — 



control 621-623, 627, 629 



distribution of virus in Nicotiana tabacum . 620-62 1 



effect of soil sterilization on 622-623 



effect of washing on removal of virus of 



from hands 621-622 



effect on Nicotiana glauca 624-626 



resistance of Nicotiana tabacum to 618-620 



transmission by plant lice 626-630 



Movement and Distribution of Moisture in 

 the Soil (paper) 113-155 



Moznette, G. F. (paper): The Cyclamen 

 Mite 373-390 



Mulch, effect on soil moisture 125-128, 152 



Musca domesiica, toxicity of organic com- 

 pounds to 365-371 



Mustard — 

 Chinese. See Brassica juncea. 

 hedge. See Sisymbrium sp. 

 See also Brassica nigra. 



Myzus persicae — 



effect of nicotine sulphate on 49 



transmission of mosaic disease by 626-630 



Naphthalene, toxicity to insects 367-370 



Needle-blight, description 100 



Needle-blight fungus. See Fungus, needle- 

 blight. 

 Needle Blight of Douglas Fir, A (paper). . . . 99-104 

 Neglected Factor in the Use of Nicotine Sul- 

 phate as a Spray, A (paper) 47-50 



New Disease of Wheat, A (paper) 51-54 



Nicotiana — 



glauca, effect of Mosaic disease on 624-626 



tabacum — 



control of mosaic disease on 623, 627, 629 



distribution of virus of mosaic disease 



in 620-621 



inf ectivity of virus of mosaic disease on . 61 5-63 1 



resistance to mosaic disease 618-620 



transmission of mosaic disease by plant 



lice 626-630 



Nicotine, toxicity to insects 367, 368, 370 



Nicotine sulphate — 

 as spray — 



comparison with nicotine 47-50 



effect on Alacrosiphum sanborni 49 



effect on Myzus persicae 49 



poisoning by 47-50 



toxicity to man 47 



effectiveness of quassia extracts contain- 

 ing 515-518 



effect of alkali on 48-50 



effect on Blalella germanica 48 



nonvolatihty 48-50 



Page 



Niter spots, soluble salts in 343-344 



Nitrate, effect of paraffin on 355-363 



Nitric acid. See Acid, nitric. 



Nitrobenzene, toxicity to insects 367, 36S, 370 



Nitrogen — 



amino, in alfalfa silage 286-287, 290 



ammonia, effect of paraffin on 355-363 



effect of paraffin on 355-363 



Nursery Blight of Cedars, A (paper) 533-540 



Oat- 

 hulled. See Avena sativa patula. 

 naked. See Avena sativa nuda. 



Organic compounds — 



index of toxicity to insects 365-371 



relation of volatility to toxicity 365-371 



Origin of Alkali (paper) 331-353 



Oxalic acid. See Acid, oxalic. 



Packing, influence on alfalfa silage 278, 280 



Paraffin, effect on ammonia nitrogen 355-363 



Pear aphis, woolly. See Aphis, woolly pear. 



Pear. See Pyrus communis. 



Pentane. See Petroleum ether. 



Peterson, W., and Stewart, R. (paper): 

 Origin of Alkali 331-353 



Petroleum ether, toxicity to insects 367, 369, 370 



Phoma sp., causal organism of nursery blight 

 of cedars 533-540 



Physiological Effect on Growth and Repro- 

 duction of Rations Balanced from Re- 

 stricted Sources (paper) 175-19 



Piemeisel, F. J., and Stakman, E. C. (paper): 

 Biologic Forms of Puccinia graminis on 

 Cereals and Grasses 429-496 



Pierce, R. G., et al. (paper): A Nursery 

 Blight of Cedars 533-540 



Pinene, toxicity to insects 367, 369 



Plutella m.aculipennis — 



control 9 



description 1-2 



distribution 2-3 



egg laying 7-8 



generations 5-6 



host plants 3 



injury to plants 8 



life history 4-8 



natural enemies 8 



seasonal history 3-4 



Poisoning — 

 insect, relation of volatility of organic com- 



poimds to 365-371 



nicotine 47-50 



Poultry, value of proteins of insects as food 

 for 633-648 



Propyl acetate, toxicity to insects 367,368,370 



Protein — 

 animal, percentage of amino-acid groups 



in 634-635 



insect, value as food 633-637 



Pscudolsuga taxifolia — 



control of needle-blight fungus on 102 



description of needle-bhght fungus on ... . 102-103 

 distribution of necdle-blightfungus on. 99, 101-102 



food plant of nccdle-blight fungus 99-103 



identification of needle-blight f tmgus on . 102-103 



