INDEX 



Abies — Page 



grandis, host plant of Rhizina inflata 94 



lasiocarpa, host plant of Herpotrichia 



nigra 252-253 



pectinata, host plant of Rhizina inflata 93 



Acid^ 

 formic, use with mercuric chlorid as a ger- 

 micide 68-85, 87-89 



hydrochloric, germicidal efficiency of 82-89 



hydrocyanic — 



content in Sorghum vulgare 179-185 



determination of 184 



in Sorghum vulgare, effect of available 



nitrogen on 180-184 



Aciinomyces chrotnogenus — 



causal organism of potato scab 129 



involution forms of 132-133 



Aeroscope — 



comparison of various types of . . ._ 348-365 



modified standard — 

 comparison of — 



with Rettger aeroscope 3SS-3s8 



with standard aeroscope 35i~354 



description of 347-348 



tests of 354.359-361 



Rettger— 

 comparison of — 

 with modified standard aeroscope . . . 355-358 



with standard aeroscope 35t>-3Si 



description of 348 



tests of 349>3SO>362 



standard — 

 comparison of — 

 with modified standard aeroscope . . 351,354 



with Rettger aeroscope 350-351 



description of 347 



Ageraium, sp., host plant of Bacterium solana- 



cearum 45^-453 



Agropyron smithii— 



ioodplsintoi Prosopoihrips cognatus 220-221 



hibernation of Prosopothrips cognatus in 223 



Air, methods of bacterial analyses of 343-368 



Alfalfa hay — 



chemical composition of 463 



phosphorus content of 465, 468 



protein content of 468 



Algin, forms of, in kelp 47-50 



AlkaU— 



injury to Beta vulgaris by 164-165 



neutralization of, in soils 213 



Am,aranthus spp., food plants of Diaprepes 



spengleri 260-261 



Amoeba radiala, development of, in soil 527 



Andropogon — 

 furcatus, hibernation of Prosopothrips cog- 

 natus in 223 



scoparius, hibernation of Prosopothrips cog- 

 natus in 222-223 



sorghum, food plant of Diaprepes spengleri 



fesiivus 263 



Anions, antagonism between — 

 as affecting barley yields on a clay-adobe 

 soil aoi-2iS 



Anions, antagonism between — Continued. Page 



relation to grain yields 211 



relation to root production 211 



Antagonism between Anions as Affecdng 

 Barley Yields on a Clay-Adobe Soil (pa- 

 per) 201-218 



Anthony, R. D., and Hedrick, U. P. (paper) 

 Inheritance of Certain Characters of 

 Grapes i^S'iiO 



Anthrax, disinfection of hides infected with 

 spores of 65-92 



Apple, bitter-rot of, sources of early infec- 

 tions of 59-64 



Ascockyta cleTnatidina — 



control of 335-34° 



description of 335 



isolation of 333-334 



taxonomy of 334-335 



Ascochyta Clematidina, the Cause of Stem- 

 Rot and Leaf-Spot of Clematis (paper). . 331-342 



Asparagus beetle. See Crioceris asparagi. 



Asparagus-Beetle Egg Parasite (paper) 303-314 



AvailabiUty of the Nitrogen in Pacific Coast 

 Kelps (paper) 31-38 



Avena sativa, inoculation of, with Puccinia 

 graminis 194-19S 



Avocado. See Persea gralissima. 



Azotobacter chroococcum — 



cytology of 225-240 



granules in ceUs of 228-338 



Bacillus — 

 amylovorus, source of infection of apple 



bitter-rot 61-64 



anthracis, disinfection of hides infected with . 65-92 

 Bacteria, measurement of precipitation of, 



from air 363-365 



Bacterial Disease of Lettuce, A (paper) 475-478 



Bacteriological Study of Methods for the Dis- 

 infection of Hides Infected with Anthrax 



Spores, A (paper) 65-92 



Bacterium — 

 solanacearum — 

 causal organism of nasturtium wilt. . . . 451-458 



cultural characters of 456 



desiccation of 456 



effect of, on tissues of Tropaeolum majus 455-456 



inoculation of 451-453 



isolation of 451 



morphology of 456 



natural methods of infection of 453-454 



staining reactions of 456 



temperature relations of 456 



viridilividum — 

 causal organism of a bacterial disease of 



Lactuca sativa 477-478 



cultural characters of 476-477 



distribution of 477 



isolation of 475-476 



morphology of 477 



Ball, beet seed, agency in dissemination of 



Phoma bctae 1 73 



Banana, root disease of 561-568 



569 



