grasses in western Oregon and Washington. 



INDEX TO BULLETINS 1 TO 10(1. 87 



Rulletin. Page. 



Rocky Mountain region, description - '51 11-12 



KoLFs. Peter Henry, bulletin entitled "The avocado in Florida ; 



its propagation, cidti- 

 vation, and market- 

 ing" 61 1-36 



"Wither-tip and other dis- 

 eases of citrus trees 

 and fruits caused by 

 Colletotriehum gloeos- 



porioides" "'S 1-22 



Rooi-bloem, corn parasite 2o . 18-20 



Root crops in western Oregon and Washington 94 35-38 



Root-knot of cowpea. description 17 23-24 



extent 17 25-27 



methods of treatment 17 27-29 



plants affected 17 24-25 



resistant varieties 17 29-36 



Roquette, varieties 21 .o^iq 



Rubber culture, status 49 13-18 



uncertainties 49 14-16 



plantations, management 49 76-78 



requirements for success 49 80-82 



security of investments 49 78-80 



83-84 



production and climate 4'.) 39-47 



tree. Central American, culture, bulletin 49 1-86 



improvement by selection 49 31-32 



latex, or milk 49 32-39 



40-43 



functions 49 34-35 



38-39 



structure 49 35-36 



Para 49 



Sec also Castilla. 



Rubidium salts, action on fungi 45 



in place of potassium salts 45 



Rush, field, description of seeds 84 



slender, description of seeds 84 



wood, description of seeds 84 



Russia, anal^-ses of soils - 1 



Russian red clover, new type, bulletin - - 95 97 90 



Rust, Aecidium tuberculatum 63 I 1^ 



crown, of oats ^■'^ 1-17 



of Agropyron 63 lo-17 



Agrostis ' 60 17-18 



Chloris 63 16 



cocklebur - 63 26 



Cottonwood 63 



Elymus 63 



Euphorbia 63 9-11 



Peucedanum foeniculaceum 63 ' 28 2J 



sunflower - 63 ll'll 



velvet leaf - 63 26-27 



willow : : 63 18-19 



Puccmea vexans ».. ^^ ^■> 



21-25 



45-47 



33 

 31-32 

 37 

 37 

 37 

 21 



18-19 

 15-17 



Rusts, emergency adaptations - 6., 



investigations. buUetin 63 1 j- 



perennial species - - "^ '"'J^ 



segregation of host plants O'^ ^^ ^•' 



winter resistance of uredo - 6-| Itltl 



Ruta-bagas in western Oregon and Washington ■»4 .^>5 37 



Rye, beach, in south Alaska 82 



grass, perennial - '^1 



wild, in Nebraska 59 



16-17 

 31 2:, 



40-41 

 94 26-27 



wild, in central Texas - ^"^ 



101 



52-53 



