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Cotton, Southern Rhodesia ... rr in aah 120° 159 
,, Spinning tests ... ns 7, ho But 155 
., Spraying SI ee a 17913 
., Swaziland J yl os eo hil 119 163 
Pax al ls is a5 a ite 138 
, Treatment of seed ... 2g Gos wih 124 151 176 
,, Uganda a 3a a or ... 121 130—132 159 
LEEW cotton x. Bs pis iis we 126 156 234 
re Yiolds Local Lo oT hy 136 
Cowpea ig 7 ok 5s whi ots 34 
Crotalaria or od , a es Re 34 
Cryptolemus montrouzieri  ... aE 5 Reh 187—194 
Cutworms ss Ss 2 oo ... 100 187 200 220 
Delegates, list of ait ai es wi ae v. 
Delegates, visits of  ... ua pe re i 22 299 
Delphax sacchernora ... nt A ioe: bf 174 238 
Diatraea 5% dr = nua oe dh 183 
Dieback (coffee) od oy Ads wns ... 49 63 202—204 
Diparopsis castanea ... A i i R72: 177 182 234 
Diplodia epicoccus  ... 0 at ht a 206 
Dipping, compulsory ... ok Ss 25 po 69 70 
Dirpliya sp... ox = ny i cats 204 
Disinfection of imported seed de a .. B77 183 225 251 
Dolichos lablab 7 s 2 2 34 
Dusting (cotton) ath doe a or 173 175 182 232 236 
Dysdercus spp. ie Ss oi ... 172 178 200 238—242 
Ear-rot (maize) fir es es 4 ns 100 
Earias spp. og Mo : es Pa 171 172 178 235 
Fconomic crops, production of—by natives ” 85—89 
Education (agricultural) ol is oh = 74—85 
Eelworms A die ida oa Ey 3 200 
Egret (buff-backed) ... £5 as by {] re. 187 
Eleusine er a, us 2s r= oo 37 223 
Empoascus sp. ... oh hz oy aoe os 181 
Eublemma costimacula he ee al Es 191 
European settlement ... Zoe 8 he im 110 248 
Euxoa ypsilon ... 2 is a Sak 5, 187 
Exchange of technical specialists ... 3, So 272 320 
Exochomus nigromaculatus ... a Aa fut 191