926 



EXPERIMENT STATION EECOED. 



Apples— Continued. Page. 



harvesting dates, N.J 344 



insects affecting 642,753 



insects affecting, N.Y. State 853 



irrigated and nonirrigated, composition . . 643 



of lower Seine regions, composition 16 



packing 41 



packing, Ind 41 



pruning, Ark 739 



seedlessness in. . , 642 



seedling, variation In 144 



sod mulch v. culture, Md 642 



sod mulch v. culture, Mich 640 



spraying experiments, U.S.D.A 640 



winterkilling of twigs and roots. Mass 147 



Apricot- 

 buds, resistance to frost, N.Mex 839 



desert, description, U.S.D.A 41 



die-back or winterkilling, notes 537 



gummosis, studies 749 



scab or freckle, notes 537 



Apricots, dried, analyses 861 



Arachis oil, determination 209 



Arachnids, relation to disease transmission... 546 

 Arbor- 

 Day, notes 196, 197 



vitae, Chinese, culture, Kans 346 



Archips — 



argyrospila, notes 157, 361 



rosana, life history and habits, Conn. 



State 654 



A rctia caja, notes 54 , 855 



Argesalicis n. sp., description 60 



Arginin, distribution in plants 1 29 



Arithmetic, agricultural, text-book 795 



Arizona University and Station, notes 796 



Arkansas University and Station, notes 95, 796 



Armillaria mellea — 



description 151 



treatment 649 



Army- 

 rations, field service, scale for 169 



worm, fall, notes 252, 656 



worm, fall, notes, Mass 154 



worm, remedies 456 



Arrhenaiherum elatius, seeding on ranges, 



IT.S.D.A 35 



Arrowhead tubers, sugar in 63, 502 



Arrowroot- 

 bagasse, analyses 565 



insects affecting 752 



varieties 434 



Arsenic- 

 absorption by green plants 130 



acid, reduction to arsenious acid, 



U.S.D.A 801 



as a normal element of soils 321 



determination in dipping agents, U.S. 



D.A 801 



determination in fungicides and insecti- 

 cides 416 



effect on nitrogen transformation in 



soils 423 , 424 



in soils 423 



Arsenical dips, notes 778 



Arsenical s, use for plant protection 236 



Arsenobenzol, use against equine influenza. . . 385 



Artesian water— Page. 



in eastern and southern Florida 119 



in New South Wales 119 



Arthropods, relation to disease 455 



Artichokes, culture in Gironde 738 



A rtocarpus integnfolia, notes 525 



Arum, culture experiments 229 



Ascarids, toxins of 278 



Ascaris— 



megalocephala, toxic properties 784 



spp., dissemination by flies 659 



spp., embryology 555 



Aschersonia— 



spp. , notes 455 



suzukii n.sp., notes 455 



Ascochyta laricina n.sp., description 746 



Ascogaster canifrons, notes 755 



Ash and willow scale, notes 53 



Ashes — 



effect on vegetation 131 



fertilizing value 230 



Asobara orientalis n.sp., description 256 



Asparagin— 



distribution in plants 129 



effect on baking quality of flour, Kans. . . 655 



occurrence in sugar cane juice 15 



Asparagus- 

 beans, description, Hawaii 828 



roots as affected by fertilizers. Mass 142 



Asparagus plumosus nanus, tropisms of 430 



A spar tic acid, effect on baking quality of 



flour, Kans 555 



Aspergillus— 



nigcr, amygdalin diastases in 241 



niger as affected by chemicals 241, 630 



niger as affected by metals 824 



niger, assimilation of zinc by 623 



niger, enzyms in 805 



niger, metabolism in 727 



niger, mutations in 630 



niger, notes 450 



niger, utflization of phy tin by 805 



oryzse, koji acid from 202 



spp., cleavage of methyl glucosid by 11 



Asphalt paving cements and road binders ... 290 



Aspidiotus— 



destructor affecting bananas 157 



perniciosus. (See San Jos6 scale.) 



Aspidistra, leaf spot disease of 448 



Association of— 



American Agricultural Colleges and Ex- 

 periment Stations 399 



American Dairy, Food, and Drug Offi- 

 cials 862 



Austrian Experiment Stations 599 



Feed Control Officials 466 



Official Agricultural Chemists, U.S.D.A . 317 



A strebla pectinata, culture experiments 632 



Athletes, training 465 



Atmosphere, radio-active products in 619 



Atmospheric- 

 impurities, effect on vegetation 32 



pressiu-e. (See Barometric pressure.) 

 temperature. (See Tempera tiu-e.) 



Atractonomus malt, notes 53 



Atriplex— 



leptocarpa canescens, culture experiments. 632 



semibaccata, seeding on ranges, U.S.D.A. 35 



