1918] 



INDEX OF SUBJECTS. 



981 



Rainfall — Continued. Page. 



effect on redwood 522 



effect on tree growth 415 



efficiency of varying amounts 716 



excessive, in London, U.S.D.A- 511 

 greatest at Washington, D. C, 



U.S.D.A 511 



heaviest in British Isles, 



U.S.D.A 511 



in eastern United States 717 



in Tennessee, Tenn 318, 319 



lunar periods in, U.S.D.A 510 



of South Africa 15 



relation to corn and wheat pro- 

 duction 317 



relation to cranberry fruit rots, 



U.S.D.A 454 



relation to crop yields, U.S.D.A- 509 



relation to forests, U.S.D.A 510 



relation to grape downy mildew- 755 



relation to magnetic storms 15 



relation to sun spots 115 



sun spots, and magnetic storms, 



U.S.DA 811 



(See also Precipitation.) 

 Ranges, management in Southwest, 



U.S.D.A 447 



Rape — 



as a forage crop, Hawaii 827 



cake, sulphureted, fertilizing 



value 121 



culture experiments 133 



culture for winter forage, Cal — 735 



liming experiments 22 



Rapeseed cake, fertilizing value 624 



Raspberries — 



breeding 845 



culture 845 



culture, Ind 246 



culture, U.S.D.A 347 



culture, Wash 643 



fertilizer experiments 540 



fertilizer experiments. Mass 218 



varieties, Ind 246 



varieties. Wash 643 



Raspberry — 



anthracnose organism, perfect 



stage 252 



anthracnose, studies, N.Y.Cor- 

 nell 853 



cane blight, notes. Can 546 



diseases in Minnesota 50 



Rations — 



computing. Pa 73 



effect on intestinal flora of 



swine, Kans 875 



Rats — 



animal parasites of 760 



color inheritance in 776 



destruction, U.S.D.A _ 356 



destruction, Wash 497 



destruction on ships 356 



directions for raising 258 



economic importance 255 



pack, destructive to Jeffrey pine 53 

 relation to Spirochwta icterohw- 



morrhagiw 653, 760 



Ravenelia, new or rare species, Page. 



notes 125 



Razoumofskya — 



americana and R. occ-identalis 



abictina, new hosts 152 



campylopoda, inoculation ex- 

 periments 253 



Bed- 

 bugs, remedies 257 



clover. (See Clover, red.) 

 dog flour. (See Flour, red dog.) 

 saunders tree, descriptive ac- 

 count 146 



scale, on olive, Cal 157 



spider. (See Spider, red.) 



Redtop, effect on succeeding crop 337 



Redwater in cattle, Wash 486 



(See also Texas fever.) 

 Redwood, relation to rainfall and 



fog 522 



Reforestation — 



in Pennsylvania 846 



of chestnut-blighted land 45 



Refrigerators for farms 292 



Renguera in lambs 687, 688 



Reproductive organs as affected by 



X-rays 268 



Reservoirs — 



for farms, U.S.D.A 84 



for small pumping plants 389 



Resins of Chile 336 



Retting, microbiological, notes 715 



Rhaidospora coffew, notes 51 



Rhagoletis pomonella. (See Apple 

 maggot.) 



Rhapidospora coffcicola, notes 51 



RMgopsidius ttwunvanus, notes, 



U.S.D.A 864 



Rhinocricus arboreus, scale-feeding 



habits 865 



Rhizobium beyerinckii injurious to 



soy beans 451 



Rhizoctonia — 



destruens, notes 848 



tnicrosclerotia n.sp., descrip- 

 tion 252 



violacea asparagi {R, medica- 



ginis), treatment 648 



violacea, notes 849 



Rhizoctonia, pathogenic action 250 



Rhizopus — 



maydis n.sp., description 849 



nigricans on strawberries 252 



nigricans on strawberries, Can. 646 

 nigricans, treatment, U.S.D.A — 149 

 Rhode Island Station — 



notes 400, 900 



report "598 



Rhododendrons, treatise 542 



Rhogas n.spp., descriptions 165 



Rhus — 



laurina and R. diversiloba, fats 



from 202 



semialata, insect galls on 764 



Rlipnchophora ferrnginea in Ceylon. 62 

 Ribes spp., resistance to pine blister 



rust 151 



