Oct. i-Dec. 3, 1921 



Index 



525 



Page 



145-14Q 

 139-149 

 102-110 



lOI-IIO 



145-149 



Stomach worm of sheep. Sec Hacmcnckits 



contortus. 

 Stone fruit fungi, temperature relations. . . . 4^1-465 

 Stone fruits, influence of orchard spraying on 



rots , 



407-477 



STORAGE OF CONIFEROUS TREE 



SEED 



„, , . 479-.S10 



Strand, A. L., et al.: PALE WESTERN 

 CUTWORM (POROSAGROTIS OR- 



THOGONIA MORR.) 289-322 



Stinking smut of wheat. See Tilktia tritici. 

 Succinic acid. See Acid, succinic. 

 Sudan grass. See Grass, Sudan. 

 Sugar-beet root aphis. See Pemphigus hUae. 



Sugar beets, dry-rot canker 4.-,, 



Sugar maple. See Acer sacckarum. 



Sugars in grapefruit 26^-70 



Sulphate- 



calcium, effect on plant growth 102-110 



copper, toxicity to potato plants 281-287 



iron, effect on growing chicks 



magnesimu, effect on growing chicks 



sodium, effect on plant growth 



Sulphates, relation to plant growth 



Sulphur, effect on growing chicks 



Sulphuric acid. See Acid, sulphuric. 

 Sumac. See Rkus glabra. 

 Sure, Bamett, and Read, J. W.: BIOLOGI- 

 CAL ANALYSIS OF THE SEED OF 

 THE GEORGIA VELVET BEAN, 

 STIZOLOBIUM DEERINGIANUM 

 SUSCEPTIBILITY OF THE DIFFER- 

 ENT VARIETIES OF SWEET POTA- 

 TOES TO DECAY BY RHIZOPUS NI- 

 CRICANS AND RHIZOPUS TRITICI. 511 

 Swanson, C. O.: HYDROCYANIC ACID 



IN SUDAN GRASS 



Sweet potatoes. See Ipomoea batatas. 

 Symphytum — 

 asperrimum, failure to become infected from 



basidiospores of Puccinia rubigo-vera 152-172 



officinale — 



host of Puccinia bromina 



susceptibUity to Puccinia trilieina.. 

 Taenia — 



saginata, hemotoxins iSo- ,-,-, 



,. , , 300^433 



sclruin, hemotoxms ,go .-^ 



Tapeworm. Sec Diphyllobothriunt laiunt. 



Taraxacum officinalis, failure to become in- 

 fected from basidiospores of Puccinia rubigo- 

 vera 



TEMPERATURE AND HUmidity^^ '^' 

 STUDIES OF SOME FUSARIA ROTS 



OF THE IRISH POTATO 65-80 



Temperature — 



effect on hookworm hemolysin 413-414 



soil, effect on— 



nodules j^,^ ^ 



onionsmut 235-262 



TEMPERATURE RELATIONS OP 



STONE FRUIT FUNGI 4S1-465 



Thalictrum — 

 angustifolium, susceptibility to teliospores 

 of Puccinia triticina j^5_j ^ j 



125-138 



154-172 

 152-172 



157-173 



157-172 



• 157-172 

 of 



• 155-172 

 . . . 165 



240 

 24a 



_,, , Page 



1 n-dltctrum — Continued. 



aquilegifolium, susceptibility to teliospores 



of Puccinia triticina 155-172 



dasycarPuvi, susceptibility to teliospores of 



Puccinia triticina 



Dclavayi, susceptibility to teliospores of" 



Puccinia triticina 



dioicum. resistance to teliospores of Puccinia 



triticina 



Fendleri. host of Puccinia CockeTelliana .... 165 



foetidum. host of Puccinia triticina 164-173 



viinus — 



resistance to teliospores of Puccinia trit- 

 icina 



,. ... 155-173 



adtanttfolxum. susceptibility to teliospores 



of Puccinia triticina 157-172 



polycarPum, susceptibility to teliopores of 



Puccinia triticina 



polygamum. resistance to teliospore; 



Puccinia triticina 



sparsiflorum. host of Puccinia alfernans 

 Thorn, Charles, and LeFevre, Edwm- 



FLORA OF CORN MEAL jjg-.ss 



Thysanosoma adinioides. hemotoxins 421-432 



Tilletia tritici, effect of — 



soil moisture 



soil temperature 



Tillotson,C. R.: STORAGE OF CONIFER- 



^Uf^^^ESEED ,„.3.„ 



Tisdale. W. B., and Jones, Fred Rcuel- 

 EFFECT OF SOIL TEMPERATURE 

 UPON THE DEVELOPMENT OF 

 NODULES ON THE ROOTS OF CER- 

 TAIN LEGUMES 



Toxylon Pomiferum, host of Cyllene pictus. ^98-203 



TRANSMISSIBLE MOSAIC DISEASE OF 



CHINESE CABBAGE. MUSTARD 



AND TURNIP.A 173-178 



TRANSPORTATION ROTS OP STONE 

 FRUITS AS INFLUENCED BY OR- 

 CHARD SPRAYING 467_4„ 



Trichostrongylus retortaeformis, hemotoxins . 387-432 

 Trichuris — 



depressiuscula, hemotoxins 



triciura, hemotoxins 



Triticum — 

 aegilops, susceptibility to aeciospores of Puc- 

 cinia triticina ,63-172 



aesttium, host of Puccinia triticina 151-172 



capilatum. behavior of the spelt form in 



crosses , ^ 



^ , 335-364 



com Pactum — 



behavior ot the spelt form in crosses . 



vigor of Fi of crosses 



dicoccum— 



behavior of spelt form in crosses ^^^ 



vigor of Fi of crosses " , ^^^^ 



dicoccoides, behavior of spelt form in crosses 361 

 durum — 



behavior of spelt form in crosses 



vigor of F 1 of crosses 



polonicum, effect of crossing 335-364 



satixum. behavior of spelt form in crosses 



with T. spella 



17-31 



420 

 384-432 



• 335-364 

 , ... 54-63 



335 

 54-63 



335-346 



