0i. XXIV 
MAY 19, 1923 
No. 7 
Foxmst of Puccmia p^amhiis 
(CoiitrlbutiOin from Bureau »f Plant Indnatif ajiS Mifmesota AgitcuBural Experiment Station) 
- 539 
’ j^ektipn of Certain Soil Factots tO; the Infection of Oats by - 
Xoose Ssaat - ^ - - - _ - _ _ 559 
LUCItrE K. BARTHOtOMEW asd EBITH, SEYMOUR JOHES 
Infiu^ce of Temperature,. Moisture, and Oxygen, oh the Spore 
. ' Germination Of Ustilago ayenae - -r - - - 577 
" EMTH SEYMOUR JONES 
(Contribution from Bnrean of Plsmt Industry and Wisconsin Agricultural Ejqperiment Station) 
Influence of Temperature on the Spore Germination Of Ustilago 
. ieher' - 1 - - 593 
EDlTfi SEYMOUR JOUES ^ ^ ■ 
.( 0 <inttit>titiaii,aom Bpreatt of Plant Ijndastryand.'WfaconEin Agikttltural Experiment Station) 
Spores, in the Upper. 4 “ 
and WARI^ N. CHRISTOPHER 
599 
Studies on the Lfle History of Stripe'itnst, l^ecinia glumarum 
^Scian.) feihss. &..Henn - - . - 607 ' 
. ; " , CHARiJJS W. HUNGERtORD _ 
(Contribution from Bureau of Plant industry and the Oregon and Idaho Agri^ltural Experiment Statkfhs> 
Influence of Some Nitrogenous Feftilfeena on the Development 
Chlorosis in Rice 
\ L..G> WlhUS and J. Q. CARRERO 
(Contribution iroin Statea EelaUims Service) 
- 621 
WmrTI^ CpOffiRATlON OF THE ASSOCUtIGN 
. OF ai^RANT COUEGES, 
<^ovEk]^ENT puiK'imG om&e 
) 'v-V 
S -V 
' 'V. ''t'" > ^ M y, V V ' %. > 
