INDEX 



Page 



A-amino nitrogen in frozen wheat 185-186 



Acid — 

 citric, effect on germination and growth. . . . 74-96 



malic, in Bartlett pears 482-499 



phosphoric — 

 effect of sulphur on release in greensand . 241 

 effect on germination and growth 74-96 



Acid-hydrolyzable substances in Bartlett 

 pears 480-499 



Acidity — 

 effect on persistence of Pseudovumas cilri in 



soil 217-218 



of Bartlett pears 489-494 



of greensand 243-2SS 



of silage 174-176 



of wheat, effect of freezing 187-188 



Acids, toleration by Bacterium coronafa- 

 ciens 132-153 



Aegle marmelos, susceptibility to Pseudomo- 

 nas citri 34i-342>345 



Aeglinae, susceptibility to Pse%idomonas 

 cilri 341-342 



Aeglopsis Chevalieri, immunity to Pseuso- 

 monas citri 342i34S 



Aerobism of Bacterium coronafaciens 157-158 



A gropyron — 

 caninum — 



host of Puccinia glumarum, 258 



on northern Great Plains 65-72 



tepens, host of Puccinia coronaia agropyri. . . 258 



smiihii on northern Great Plains 65-72 



fe««rMW on northern Great Plains 65-72 



Aguingay. See Rottboellia exaltata. 



Alang-alang grass. See Imperata sp. 



Alcohol — 



effect on milk and fat production 124 



in silage 174-177 



Alcohol-insoluble substances in Bartlett 

 pears 480-499 



Alkalinity, effect on persistence of Pseudo- 

 monas cilri in soil 217-218 



Aloes, effect on milk and fat production 124 



Aluminum — 



oxid in greensand 244 



sulphate, effect on availability of potassium 

 of greensand 242-256 



Amid nitrogen in f rozeti wheat 185-186 



Ammonia nitrogen in frozen wheat 185-186 



Ammonia production by Bacterium corona- 

 faciens 151 



Andropogon — 



/urcc/iti on northern Great Plains 66-72 



scoparius on northern Great Plains 65-72 



sorghum — 



host of Sdcrospora philippinensis 104-1 22 



var. halcpcnse resistance to Sclerospora 

 philippinensis 104 



Page 



Anias. See Andropogon sorghum, var. hale- 

 pense. 



Anthony, Stephen, and Harlan, Harry V. 

 (paper): Development of Barley Kernels 

 in Normal and CUpped Spikes and the 

 Limitations of Awnless and Hooded Varie- 

 ties 431-472 



Antigens, germ-free filtrates S13-S1S 



Antimony, black sulphid, effect on milk and 

 fat production 125-130 



Aphis, com. See Aphis maidis. 



Aphis maidis, carrier of sugar-cane mosaic. . 133, 135 



Arislida longiseta on northern Great Plains. . . 65-72 



Arsenic, effect on milk and fat production . . 1 25-130 



Artemisia — 

 dracunculoides on northern Great Plains. . . 65-72 



frigida on northern Great Plains 65-72 



gnaphalodes on northern Great Plains 65-72 



Artificial and Insect Transmission of Sugar- 

 Cane Mosaic (paper) 131-138 



Ash content of barley kernels — 



change during development 412-428 



from normal and clipped spikes 452-469 



Ashby, R. C, and Malcomson, A. W. (paper): 

 Variation of Individual Pigs in Economy 

 of Gain 225-234 



Aster multiflorus on northern Great Plains 65-73 



Atalantia — 

 Ceylonica, susceptibility to Pseudomonas 



citri 343. 34S-347 



cilrioides, susceptibility to Pseudomonas 



citri 343. 345- 347. 348 



disticha, susceptibility to Psexidomonas 



citri 34S 



glauca. Syn. Eremocitrus glauca. 

 Hindsii. Syn. Fortunella Hindsii. 



Atterhergii, variety, infertile intermediate 

 barley 587 



Avena saliva, halo-blight i39-i7» 



Awnless barley, limitations 431-472 



Bacillus — 

 avenae, causal organism of blade-blight of 



oats 167 



botulinus, separation by germ-free filtrates 513-515 

 edematiens, separation by germ-free filtrates. 513 

 tetanus, separation by germ-free filtrates 513 



Bacterium coronafaciens, n. sp.— 



control 170-171 



cultural characters 1 4S-1S8 



description of lesions 139-140 



geographical distribution 140 



isolation No. 36 iS4-iSS 



overwintering and dissemination 158-162 



stock halo organism 148-154 



yellow organism iSS-is3 



Balsamocitrus Daivci, immunity to Pseudo- 

 monas citri 343i 345 



(593) 



