Apr. 15-Sept. IS, I9i<) 



Index 



325 



Page 



Influence of Soil Environment on tlie Rootrot 

 of Tobacco (paper) 41-86 



Inoculation with mosaic through plant 

 juices 253-255 



Insecticide, Derris 177-200 



Investigations on the Mosaic Disease of the 

 Irish Potato (paper) 147-274 



Irish potato. SceSolanum tuberosuTn. 



Johnson, James, and Hartman, R. E. (paper): 

 Influence of Soil Environment on the Root- 

 rot of Tobacco 41-86 



Ladson, H. H., et al. (paper): Bacterium 

 abortus Infection of Bulls 239-246 



Lambs, growth of, relation to ewes' milk .... 19-32 



Larvae — 



potato beetle, toxity of Derris to 195-200 



tent caterpillar, toxity of Derris to 195-200 



trichinae — 



decapsuled, effects of heat on 204-212 



encysted, effects of heat on 212-221 



Lemon — 



fruit buds, seasonaldistributionof 154-156 



fruit, time required to mature 161-162 



inflorescences, size and productiveness of. 156-160 

 relation between flowers and fruits of 153-165 



Lepidosaphes tdmi, toxity oiDerristo 193-200 



Leptinoiarsa decemlincata, toxity of Derris to, 



187-200 



Lord, E. C. E. (paper): Ultra-Microscopic 

 Examination of Disperse Colloids Present in 

 Bituminous Road Materials 167-176 



Mclndoo, N. E., Sievers, A. F., and Abbott, 



"W. S. (paper) : Derris as an Insecticide .... 1 77-200 



Macrosiphum — 



liriodendri, toxity of Derris to 189-200 



solanifolH, carrier of mosaic of Solanum 



tuberosum 256-266 



Magnesia hydrate, used in grinding cell for 

 ultra-microscopic examination 169-171 



Maize. See Zea mays. 



Malacosoma americana, larvae, toxity of Der- 

 ris to 195-200 



Mallophaga, toxity of Derris to 192-200 



Mealybug. See Pseudococcus citri. 



Meat extracts — 



acetic-acid test of 13-14 



ash in 3, 7-8, 14, 16 



carbohydrates in 16-17 



clarification of 2 



copper test of; 16-17 



creatin in 6-16 



creatinin in 6-i5 



Molisch test of 15-16 



nitrates in 6-7 



nitrogen in 4-17 



normitrogenous organic matter in 5-10 



phosphoric acid in 4, 7-12, 14, 16 



phosphorus in 4-16 



physical characteristics of 12-13 



portions cf carcass used in preparation of . . i 



preparation of — 



commercial method i 



laboratory method 2 



purins in 5-8 



qualitative investigation of 13-1 7 



quantitative investigation cf 3-12 



sodium chlorid in 3, 7-8, 14, 16 



water in 3,7 



Page 

 Meat Extracts, Their Composition and Iden- 

 tification (paper) 1-17 



Melon aphis. See Aphis gossypii. 

 Metabolism, carbohydrate, in sweetcom 



during storage 137-152 



Milk- 

 cows' — 

 effect of age on frequency distributions for 



variation in 285-321 



variation of Ayrshire cows in fat content 



of 285-321 



variation of Ayrshire cows in quantity 



of 285-321 



ewes' , quantity and composition of 19-32 



Miller, H. G. (paper): Relation of Sulphates 



to Plant Growth and Composition 87-102 



Miner, John Rice, and Pearl, Raymond 

 (paper): Variation of Ayrshire Cows in the 

 Quantity and Fat Content of Their Milk. . 2S5-321 

 Moisture content of soil, relation to rootrot of 



tobacco 49-53 



Molisch test, used in analyses of meat extracts. 15-16 

 Mcnilia fruciigena, on seeds, use of formalde- 

 hyde vapor against 36 



MonoTnorium pliaraonis, toxity of Derris to. 197-200 

 Mosaic disease of Solanum tuberosum — 

 effect of — 



hill selection 267-270 



roguing 270-271 



effect on — 



starch content of plant 266-267 



sugar content of plant 266-267 



yield 24S-249, 269 



geographical distribution 248 



symptoms 249-250 



transmission by — 



aphids 256-266 



grafting 251-253 



plant juices 253-255 



tubers 250, 253-254, 261-262 



Mw^coifomei/ica, toxityofDerristo 192-200 



Myzus persicae— 

 carrier of mosaic of Solanum tuberosum . . 256-266 



toxity of Derris to 1S9-200 



Nasturtium aphids. See Aphis rumicis. 

 Neidig, Ray E., and Iddings, E. J. (paper): 

 Quantity and Composition of Ewes' Milk: 



Its Relation to the Growth of Lambs 19-33 



Nicotianatabacuin, rootrot of^ 



effect of transplanting diseased seedlings Si-83 



influence of^ 



clay and sand content of soil 76-78 



organic matter in soil 73-76 



soil acidity 53-60 



soil alkalinity 53-60 



soil compactness 80-Si 



soil fertility 78-So 



soil moisture 49"53 



soil temperature 60-73 



Nitrates in meat extracts 6-7 



Nitrogen in meat extracts 4-17 



Nonnitrogcnous organic matter in meat ex- 

 tracts 5-10 



Oak worms. SecAnisotasenaloria. 



Orthezia insisnis, toxity of Derris to 193-200 



Oxygen, relation to storage of sweetcorn 278 



