A FORTNIGHTLY REVIEW 



OF THE 



IMPERIAL DEPARTMENT OF AGRICULTURE FOR THE WEST INDIES. 





Vol. XL No. 271. 



BARBADOS. SEPTEMlMill 14, 1912. 



Prick Id. 



CONTENTS 



Agriculluif ill I'l'it'i 

 Kit<', 1911 



Baliita fniii Ki'itheni Ni- 

 goiia 



Cacao Cultivati"!!. A Ncg- 

 locteil Consideration 

 ill 



Cataplior, Cseful Iiifoi- 

 iiiatiou Concwning... 



Cotton Notes : — 



Cotton-Gi-ii\vii)'4 in the 

 Ani;li -Kgyptian 



Sudiin 



Cotton Seed Meal for 



Mule.-, and Hoi.ses ... 



The Develi^imient of 



Cotton-tiroH int; in 



India! 



West Indian Cotton... 



iJepartniont New.-< 



Gleanings 



Iiiijerial Department of 

 Agricultiuc, Puhlica- 

 tiiins nf 



In.sect Notes :— 



Re|ioit on a Visit to 

 St. Kitts, Part II... 



Hack 



303 

 29fl 



292 

 302 



2P4 

 295 



Insect Notes (CWW.) 

 Za!c.[.hutlirix niiruiii ... 



Internaiion.il Uiiboer Kx- 

 hiliition, rmperial hi 

 .stilute and 



Jamaica, Scliool Clarden 



AGE. 

 29H 



. 299 



294 

 294 

 201 

 300 



297 

 298 



297 



Lemon (trasses in Fiji ... 29.'{ 

 ftlango, .\ Nearly Seedless 30:> 



Market Report.s 304 



Notes and Comments ... 290 



Root-Coiton 299 



Kiililier Experiments in 



Southern Nigeria ... 29;; 



St. Vineent and Visita- 

 tion Uy lliirrieanes... 296 



Scieiititic Work, hired 



and Indirect Vidues of 289 



Students' Corner 301 



Sugar lndu.stry: 



The Tielation between 

 the Crushing of Cane 

 and the Volume of 

 the Fibre 291 



Wood Pre.servation, Treat- 

 ment in India 297 



The Direct and Indirect Values of 

 Scientific Work. 



*OT '!«^^HK gieat improvement which has taken 

 place in recent years in the application of 

 jscientific knowledge to the practical affairs 

 of agriculture has e.xercised a most beneficial influence 

 over the results obtained from the cultivation of crops 

 and the rearing of stock. If the agricultural progress 

 of the world during the past twenty- five years were to 

 be carefully scanned, many instances would be found 

 illustrating the value of the work of scientists when 



the results of such work were properly applied to the 

 solution of existing problems. AH branches of science 

 Avould jielii instances illustrating this point; but for 

 the pre.sent purpose, a brief consi'leration of a few 

 entomological problems will suffice. 



From the instances given bulow it will be seen 

 that the study of such problems often leads to the 

 discovery of facts which have an importance greater 

 than that of the original investigation, and extend 

 much beyond the limits suggested by the problenx 

 under consideration. 



The study of cattle ticks and 'J'exas fever resulted 

 in a knowledge of the dissemination of several diseases 

 by insects and ticks; ihe attempts to control the San 

 Josi' scale brought about the production of a number 

 of contact inseeticides of greater efficiency than those 

 jireviousl}' known: the struggle against the gypsv moth 

 caused the commercial production of arsenate of lead, 

 and gave a stimulus formerly unknown to the attempt.s 

 to import and establish natural enemies for the control 

 of an introduced pest; while the steady warfare waged 

 against the cotton boll weevil has produced favourable 

 changes in agrictiltural practice, in the infested dis- 

 tricts, in the matter of cultural methods, rotation, and 

 diversification of crops. 



The study of ticks in relation to fever in cattle has 

 brought about an accumulation of knowledge of the 

 most useful and varied kinds. In the first place, a 

 study of the life-history of ticks, and of the disease 

 known a.s Texas fever or tick fever, demonstrated the 

 fact that the micro-organism causing the disease is 

 tram^niitted to healthy animals by the bite of the tick, 

 and it was f'luther found that no other means of infec- 

 tion could be proved than the bite of ticks which had 

 previously fed upon infested animals. This led to 



