Apr. 3-Sept. 25, 1916 



Index 



I057 



Rhizopus— Continued. Page 



sp — 



comparison with Botryiis sp 365-366 



effect of heat on 155, 159, 161 



results of infection of Fragaria sp. by . . 363-365 



Rhopalosiphum sonchi, host of Aphidoleles 

 meridionalis 884 



Ricinus communis, effect of Bacterium tume- 

 faciens upon 180 



Ritzman, E. G. (paper) Mendelism of Short 

 Ears in Sheep 797-798 



Rock Creek region — 



characteristics of 742-745 



meadow hay versus alfalfa and grain in. . 756-757 



minor plants of 757-758 



plants 01 743-745 



Rontgen — 

 rays, effect of, on Lasioderma serricorne. - 383-388 

 tube, experiments with a newformof 383-388 



Root system of corn and sorghum, compar- 

 ative study of 311-332 



Rot, watermelon stem-end 149-152 



Runner, A. A. (paper) Effect ol Rontgen 

 Rays on the Tobacco, or Cigarette, Beetle 

 and the Results of Experiments with a New 

 Form of Rontgen Tube 383-3S8 



Russel, J. C, and Alway, F. J. (paper) Use 

 of the Moisture Equivalent for the Indirect 

 Determination of the Hygroscopic Coeffi- 

 cient 833-846 



Rye. See Secale cereale. 



Sand, silica, effect of carbon bisulphid on 

 plant growth in 14-19 



Saperda tridentata, host Insect of Diplogaster 



labiata US 



Sarcina flava, life cycle of 68S-694 



Satterthwait, A. F., and Davis, J. J. (paper) 

 Life-History Studies of Cirphis Unipuncta, 

 the True Army Worm 799-812 



Scleroiium rolfsii — 



causal organism of sclerotium-rot 560 



inoculation experiments with 560-561 



moisture requirements of 567 



parasite of — ■ 



Arachis hypogaea 559 



Brassica oleracea 559 



Gossypium spp 559 



Lycopersicon esculenlu?n 559 



Viola spp 559 



temperature requirements of 569 



Sclerotium-rot, description of 559 



Scofield, C. S-, Headley, F. B., and Curtis. 

 E. W. (paper) Effect on Plant Growth of 

 Sodium Saltsin the Soil 857-869 



Sea-grape. See Coccoloba uzifera. 



Secale cereale, analysis of 494 



Seed, hard. See Seed, impermeable. 



Seed, impermeable — 



agricultural value of ... . 761-796 



effect of conditions upon germination of. 775-781 



estimation of the germinability of 767-77° 



experiments with 763-793 



germination of, after passing winter in 



field 781-784 



production of seedlings by. . 772~775> 784-785. 79°- 



792 



Serum, anti-hog-cholera — Page 



preparation of 334-336 



production of clear and sterilized 333-338 



yields by various methods 336-338 



Sex-Limited Color in Ayrshire Cattle, A 



(paper) 141-147 



Shaw, R. H., Norton, R. P., Wright, P. A., 

 and Turner, .W. F. (paper) Effect of Water 

 in the Ration on the Composition of Milk . 167-178 



Sheep, Mendelism of short ears in 797-798 



Silage, rape, as material for 527-533 



Silver-Scurf of the Irish Potato Caused by 



Spondylocladium atrovirens (paper) 339-35° 



Simanton, F. L- (paper) Hyperaspis binotata 



a Predatory Enemy of the Terrapin Scale. 197-204 

 Sinapis alba, effect of carbon bisulphid on 



growth of 6-10, 13-15 



Siphi flava, host insect of Aphidoleles meridi- 

 onalis 884 



Siphocoryne pastinacae, host of Aphidoleles 



meridionalis 884 



Smith, E. B., and Goldbeck, A. T. (paper) 

 Tests of Three Large-Sized Reinforced- 

 Concrete Slabs under Concentrated Load- 

 ing ■ 205-234 



Smith, E. F. (paper) Crowngall Studies 

 Showing Changes in Plant Structure Due 



to a Changed Stimulus 179-182 



Smith, N. R., and Lohnis, F. (paper) Life 



Cycles of the Bacteria 675-702 



Snyder, R. S., and Potter, R. S. (paper) 



Soluble Nonprotein Nitrogen of Soil 61-64 



Snyder, T. E. (paper) Egg and Manner of 



Oviposition of Lyctus planicollis 273-276 



Sodium — ■ 

 bicarbonate — 



comparison of toxicity of, with sodium 



carbonate 865-866 



effect of, on seedlings of Triticum spp . . 863-865 

 carbonate — 

 comparison of toxicity of, with sodium 



bicarbonate 865-S66 



effect of on seedlings of Triticum spp . . 859-863 

 chlorid, effect of. on seedlings of Triti- 

 cum spp 866-867 



salts — 



comparative toxicity of S69 



in the soil, effect of plant growth 857-869 



sulphate, effect of, on seedlings of Triticum 



spp 867-868 



Softrot— 



cause of 562-563 



description of 562 



Soil- 

 acid, effect of carbon bisulphid on plant 



growth in 1 1-14 



ammonifying power of, treated with ma- 

 nure 896-902,905-908,913-915 



analysis of — 

 in relation to mottle-leaf of Citrus trees. 725-738 

 for alkali-soluble and soluble nonprotein 



nitrogen 63 



bacterial activities of, influence of barnyard 



manure and water upon 889-926 



bacteriological studies of 953"975 



composition of, in manure cxperi_nents 894 



