Apr. 15-Sept. 15, 1919 



Index 



327 



Page 

 Sugar content of foliage, effect of mosaic 



upon 266-267 



Sugar — 



loss from sweetcorn after picking 276-278 



loss from sweetcorn during storage 142-152 



Sulphates, relation to plant growth and 



composition 87-102 



Sulphur in Oregon soils 89 



Sulphuric acid. See Acid, sulphuric. 

 Sunflower aphis. See Aphis helianlhi. 

 Sweetcorn — 



loss of sugar after picking 276-278 



storage of — 



carbohydrate metabolism during 137-152 



formation of starch during 149-152 



loss offree-reducing substances during. 142-152 



loss of sucrose during 142-152 



loss of sugar during 142-152 



relation of— 



carbon dioxid to 278 



oxygen to 278 



temperature to loss of sugar 276-283 



Temperature — 

 effect on — 

 carbohydrate metabolism in sweetcorn 



during storage 137-152 



germination of camphor seed 232-237 



setting of fruit in plimi 108-110 



toxity of Derris extract 182-184 



trichinae 201-221 



relation to loss of sugar from sweetcorn . . 276-283 



soil, influence on rootrot of tobacco 60-73 



Temperature in Relation to Quality of 



Sweetcorn (paper ) 2 75-284 



Teosinte. See Euchlaena tncxicana. 



Tdranychus bimacvlatus , toxity of Derris to 193-200 



Thermal death point of trichinae 201-221 



Thielavia basicola, cause of rootrot of tobacco . 41-86 



Page 

 Thomas, Cecil C. (paper): Seed Disinfection 



by Formaldehyde Vapor 33*39 



Tobacco. See Nicoliana tahacum. 

 "Toeba." SeeDcrriVspp. 

 Trichinae. See Trichinella spiralis. 

 Trichiitella spiralis — 



effect of heat on 201-221 



larvae — 



decapsuled, effects of heat on 204-212 



encysted, effects of heat on 212-221 



"Tuba." See £>err!.f spp. 



"Tubain, " substance derived from Derris 



elliptica 179 



Tubers, transmission of mosaic by 



250, 253-254, 261-262 



Tulip-tree aphis. See Macrosiphutn lirio- 



dendri. 

 Turnip aphis, false. See Rhopalosipkum 



pseudobrassicae. 

 Tussock-moth caterpillars. See Hemerocam- 



paleuco stigma. 

 Ultra-Microscopic Examination of Disperse 

 Colloids Present in Bituminous Road 



Material(paper) 167-176 



Variation of Ayrshire Cows in the Quantity 

 and Fat Content of Their Milk (paper) . . 285-321 



Water in meat extracts 3)7 



Weather . relat ion to f ruitf ulness in the plum 103-1 26 

 Web worms, fall. See Hyphantria cunea. 

 Zea- Euchlaena hybrids, structure of ear. . . 127-135 

 Zea — 

 mays — 



alicoles, many-ranked 128-134 



alicoles, yoked 128-134 



spikelets, paired 128-134 



raviosa, intermediate between Euchlaena 

 and Zea mays 130 



