1919] 



INDEX OF SUBJECTS. 



995 



Soy beans -Continued. 



seeding deptlis, N..T., 42. 



seeding exp(>rimonts, Mo., f>37. 



variet.v for Idaho, Idaho, 2:2.'(. 



variety tests, .Vriz., 331; Del., l.'!7; 

 Mo., 6:!7 ; N.C., (538 ; Tex., 35. 



viability as affected by heat, 430. 



white, amino-acid content, 3G7. 



zinc content, 464. 

 Sparrow — 



hawk, economic position, 4.54. 



house, food habits, 454. 



tree, proper name, 250. 

 Spavin, pathology of, 82. 

 Spectrum, biological normal, 428. 

 Spermatogenesis in pli(>asants and Golden 



Campine cocks, 472. 

 l^p/urrotheca — 



humuli, treatment. 751. 



mors-uvce, notes, 4i), 154. 

 Sphenomyia, new genus, erection, 259. 

 Sphinx ligustri, absence of complement in 



blood, 754. 

 Spices, methods of investigation and stand- 

 ards, 558. 

 Spider mite on poison ivy, 7G0. 

 Spiders — 



British, handbook, 455. 



food consumption. 463. 



(See also Red spider.) 

 Spinach — 



aphid in.iury, Va.Truck, Cfi2. 



aphis on potato, 255. 



blight, notes, Va.Ti-uck. 6C:;, 064. 



diseases, notes, 700, 843. 



nutritive value, 557. 

 Uplrochwtn — 



cytophaga n.sp. decomposing celln 

 lose, 632. 



Icterohcemorrhariim in the rat, 85. 

 Spirochaetales, subgroups and genera, S21. 

 iipizeJla arborea, proper name for tree spar- 

 row, 250. 

 Kpondlllocladiiim atrovirens, treatment, 



74S. 

 f^ponpospora sp. on potato, 748. 

 Spore trap, automatic, 153. 

 Sporobolus spp. analyses, Wyo., 333. 

 Sporotrichosis, potassium iodid treatment. 



781. 

 Spotted fever tick. Rocky Mountain, 57. 

 Spray- 

 application of fertilizers. Hawaii, 138, 

 148. 



nozzles, studies, W.Va., 290. 

 Spraying — 



dust. (See Dusting.) 



for weed control, 537, 538, 737. 



machinery, care, 551. 



machines, tests, N.J., 52. 



outline for fruit-growers, Mich,, 43. 



(See also Apples, Potatoes, etc.) 

 Spray.«! — 



copper. (See Copper.) 



for downy mildew, studies, 249. 



Si)rn.vs Continued. 



orchard, tests, 657. 



(.S'ee also Insecticides, Fungicides, and 

 specific forms.) 

 Spruce — 



forests, nitrification of soil. 125. 



graft on pine, 47. 



growth and reproduction on hardwood 

 lands, 47. 



measurement, form-point method, 47. 



pollen distribution, 46. 



root habit, 634. 

 Sprue, etiology of, 562. 

 Squash — 



bug, remedies, N.Mex., 159. 



in water culture, e(iuilibrium concen- 

 tration, 132. 



rotation experiments, R.I., 434. 



seedling.s, absorption of calcium salts, 

 221. 

 Squii-rels, ground, in California, 353. 

 Squirrel-tail grass — 



analyses, Wyo., 333. 



in.iury to sheep, Nev., 782. 

 Stable fever. (See Influenza, equine.) 

 Stable fly — 



relation to anthrax, La.. 461. 



relation to fowl cestodes, 881. 



relation to hog cholera, 578. 

 Stallions in Indiana, Ind., 178. 

 Staphylococci, toxicity of various dyes for, 



474. 

 Starch — 



action of enzyms on. 409. 



action of ptyalin on, 614. 



chemistry of, progress, 614, 801. 



composition, 202. 



from Arum, 117. 



manufacture, handbook, 417. 



r. dextrin in nutrition of tadpoles, 

 469. 

 Starling, economic position, 454. 

 ■' Steek " grass, harmful effects on .sheep, 



873. 

 Steers — 



composition at various stages of 

 growth, 367. 



feeding experiments, 769 ; Can., 567 ; 

 Pla., 566; Ind., 68; Mo., 673. 



on summef pasture in the South, 

 U.S.D.A., 565. 



passage of feed residues through, time 

 required, Oa., 176. 



range, grazing experiments, 435. 



silage for, S.Dak., 567. 



velvet bean pasture for, Fla., 566. 



(See also Cattle.) 

 Slegomyia — 



control, 553. 



(Effectiveness of culicifuges against, 

 554. 



infection experiments, 851. 

 SUnoma catenifrr on avocado, 460. 

 Stenozygum personatum, notes, 551. 

 Stephanurus drntatus causing paralysis in 

 a sow, 86. 



