INDEX 



Page 

 ABSORPTION OF COPPER FROM THE 



SOIL BY POTATO PLANTS 281-387 



Acer — 



nibrum, host of Xylotrechus colonus 195-198 



saccharum, organic acids 221-229 



Achillea ptarmica, susceptibility to Puc- 



cinia triticlna 152-172 



Acid — 



amino, in G€orgia velvet beans 15 



citric, in grapefruit 263-279 



diainiao, in Georgia velvet bean 15 



hydrocyanic, in Sudan grass 125-138 



:iialic, in Pyrui coronaria 221-229 



phosphoric, effect on hydrocyanic acid in 



Sudan grass 135 



succinic, in Pyrus coronaria 22 1-229 



sulphuric, effect on hydrocyanic acid in 



Sudan grass. 133-135 



Acid producers in corn meal 181-188 



Acid-sugar ratio in grapefruit 263-279 



Acids— 

 effect on hydrocyanic acid in Sudangrass. 133-135 

 organic, of Pyrus coronaria , Rhus glabra, and 



Acer sacckarutn 221-229 



Aconitum— 

 Fischeri, resistance to teliosporesof Pticcinia 



triticiiia 155-172 



Lycoctonutn, susceptibility to Puccinia 



triticiiia 152-172 



Napellus, susceptibility to Puccinia triti- 



cina 152-172 



Actaea spicaia, resistance to teliospores of 



Puccinia tritichia 155-172 



Actinotnyces sp. in com meal 187-188 



AECIAL STAGE OF THE ORANGE 

 LEAFRUST OF WHEAT, PUCCINIA 



TRITICINA ERIKS 151-172 



Aecidiuin — 



Anchiisae, pathogenicity on wheat 152 



Berberidis, in life cycle of Puccinia grami- 



nis 151-172 



Ranunculacearum 7 Thalictri Havi. Syn. 



Aeculiiim Thalictri Jiavi. 

 Thalictri flavi, rust on Agropyron repens. . . 164 

 Aegopodiuin Podagraria, susceptibility to 



Puccinia triticina 152-172 



A gropyron — 

 caninum, resistance to aeciospores of Puc- 

 cinia triticina 163-172 



cristatum, resistance to aeciospores of Puc- 

 cinia triticina 163-172 



desertorutn, resistance to aeciospores of 



Puccin'a triticina 163-172 



inerme, resistance to aeciospores of Puccinia 

 triticina 163-172 



Page 



^4 gropyron — Coniinued. 

 repens, resistance to aeciospores of Puccinia 



triticina 163-172 



Rickardsonii, host of Puccinia Agropyri. . . . 165 

 Smithii, resistance to aeciospores of Puc- 

 cinia A gropyri 165 



t&nerutn, resistance to aeciospores of Puc- 

 cinia triticini 163-172 



Agrostemma Githago, susceptibility to Puc- 

 cinia triticina 152-172 



Agrostis — 



borealis, host of Puccinia triticina 164-172 



orthogonia. Syn. Porosagrotis orthogonia. 



Akis muricota. Syn. Embaphton muricatum . 



Albumen, egg, effect on growing chicks 146 



Albumin in Georgia velvet bean 15 



Alfalfa, effect of soil temperature on develop- 

 ment of nodules 17-31 



Alkaline solution, efl'ect on hydrocyanic acid 

 in Sudan grass 135-136 



Alternaria sp. on pitted grapefruit 277 



Atnbrosia artemisiifolia, glucosid 4 



Amino acid. See Acid, amino. 



Ammodrainus savannaruni bim avtilatu s , 

 enemy of Porosagrotis orthogonia 313 



A mygdalus persica— 

 effect of temperature on damage from rots 452-465 

 host of Lecaniu m corni 191 



Aiichusa — 

 arvensis, host of aecial stage of Puccinia 



rubigo-vera 151-173 



ofvcinaUs, host of aecial stage of Puccinia 

 rubigo-vera 151-172 



Ancylostoma— 



caninum, nonhemolytic effect 383 



duodenak, hemotoxins 382-432 



Anemone — 

 canadensis, resistance to teliospores of 



Puccinia triticina 155-173 



cylindrica, resistance to teliospores Puccinia 



triticina 155-172 



japonica, resistance to Puccinia triticina. . 155-173 

 ranunculoides, susceptibility to Puccinia 

 triticina 152-173 



A noploccphala — 



perfoliata, hemotoxins not found 383 



pHcata, hemotoxips not found 382 



Anthocyanin in maize 2-31 



Anthoxanthum odoratum, host of Puccinia 

 triticina 164-172 



Anticoagulins in hookworms 418-420 



Aphids, carriers of mosaic of Chinese cab- 

 bage 173-178 



Aphis, sugar-beet root. See Pemphigus betae. 



Apple blotch. See Phyllosticia solitaria. 



