Apr. i-June 24, 1918 



Index 



659 



Laspeyncsia — Continued 

 mcksia — continued Page 



resemblance to Laspeyresia prunivora. . . . 64-65 

 resemblance to Laspeyresia pyriceolana. . 64-65 

 pomenella, resemblance to Laspeyresia 



molesta 64 



prunivora, resemblance to Laspeyresia 



nuilesta 64-65 



pyricolana, resemblance to Laspeyresia 

 molesta 64-65 



Laurel, moimtain. See Kalmia latifolia. 



Lead nitrate, effect on infectiviLy of mosaic 

 virus 623 



Leafblight of Kalmia batifolia (paper) 199-212 



Leafblotch, yellow, of Medicago satiia — 



causal organism 310-326 



description 308-310 



distribution 307-30S 



economic importance 308 



Leaf perforation of Laciuca saiiza, syn. An- 

 thracnose of Laciuca satna. 



Leafspot, Stemphylium, of Cucumis saiiius — 



causal organism 296-297, 299-300 



symptoms 295-296 



Lecithin, effect on infectivity of mosaic 

 virus 633 



Lettuce. See Laciuca saliva. 



Levine, M. N. and Stakman, E. C. (paper): 

 A Third Biologic Form of Puccinia Gram- 

 inis on Wheat 651-654 



Light, relation to growth of Stemphylium cu- 

 curbitacearum. 301 



Limestone, requirement in manured soil. . . 174-187 



Lime-s-alphur solution, reaction with calciiun 

 arsenates 289-292 



Lithium nitrate, effect on infectivity of mo- 

 saic virus 623 



Long, W. H. (jjaper); An Undescribed 

 Canker of Poplars and Willows Caused by 

 Cytospora chrysosperma 331-345 



Louisiana lettuce disease 371 



Lycopersicon esculentum, susceptibility to 

 pox 444 



McBri'de, C. N., et al. (pajier); Investigations 

 Concerning the Sources and Channels of 

 Infection in Hog Cholera 101-131 



Maclilillan, H. G. (paper); Sunscald of 

 Beans 647-650 



Macroccntrus sp. — 



parasite of Laspeyresia molesta 70-71 



parasite of Laspeyresia pomonella 70 



Macrosporium commune, isolation from soil. . 92 



Magnesium sulphate, ammonification of dried 

 blood in soils with 216-217,221 



Malus sylvestris, food plant of Laspeyresia 

 molesta 60 



Man, basal katabolism of 50-52 



Manganese sulphate, effect on infectivity of 

 mosaic virus 622 



Manure — 



boron-treated, effect on plants 451-47 



green, soil acidity as influenced by 171-197 



limestone requirement of 174-183 



Maple. See .4 ccr douglasii. 



Marssonina panattoniana— 

 causal organism of anthracnose of Laciuca 

 saiiva 261-280 



Marssonnina panattoniana — Continued Page 



distribution j6* 



morphology 271-273 



physiological relations 273-277 



synonym 271 



Marsonia panattoniana, syn. Marssonina 

 panattoniana 



Marsonia perforans, syn. Marssonina panat- 

 toniana. 



Medicago saiiva — 



digestibiUty 611-618 



yellow leafblotch of— 



causal organism 310-326 



description 308-310 



distribution 307-308 



economic importance 308 



Mercuric chlorid, effect on infectivity of 

 mosaic virus 623 



Mesostenus sp., parasite of Laspeyresia 

 molesta -o 



Millar, C. E. (paper); Relation between Bio- 

 logical Activities in the Presence of Various 

 Salts and the Concentrarion of the Soil 

 Solurion in Different Classes of Soil 213-223 



Miller, C. F. (paper); Inorganic Composition 

 of a Peat and of the Plant from Which It 

 Was Formed 605-609 



Miller, E. C. and Coffman, W. B. (paper); 

 Comparative Transpiration of Com and 

 the Sorghums 579-604 



Milliken, F. B. (paper); Nysius ericae, the 

 False Chinch Bug 571-578 



Moisture — 



effect on olive oil 356-364 



relation to growth of Stemphylium cucurbi- 



tacearum 301 



See also Water. 



Monascus spp., isolation from soil 92 



Moore, W., and Graham, S. A. (paper); Physi- 

 cal Properties Governing the Efficacy of 

 Contact Insecticides 523-538 



Mosaic virus of Nicotiana spp., effect of chem- 

 icals on infectivity 619-637 



Moth- 

 codling. Ste.Laspeyresia pomonella. 

 gipsy. See Porihetria dispar. 

 oriental peach. See Laspeyresia molesta. 



Mucor spp., isolation from soil 92-93 



Musca domestica, relation of temperature to 

 activity 161-162 



Naphthaline crystals, effect on infectivity of 

 mosaic virus 634 



Newcomer, E. J. (paper); Some Stoneflies 

 Injurious to Vegetation 37-42 



Nicotiana spp., mosaic virus of, effect of 

 chemicals on infectivity 619-637 



Nitric acid. See Add, nitric. 



Nysiusericae, the False Chinch Bug (paper) 571-578 



Nysius ericae — 



descripUon 571-572 



effect of temperature on development 577-578 



life history S72-s-(> 



reproducrion 57fr-577 



A New Bacterial Disease of Gifisy-Moth 

 Caterpillars (paper) 515-522 



Niles, W. B. et al., (paper); Concerning the 

 Sources and Channels of Infection in Hog 

 Cholera 101-131 



