A FORTNIGHTLY REVIEW 



or THK 



IMPERIAL DEPARTMENT OF AGRICULTURE FOR THE WEST INDIES. 



Vol. XI. No. 268. 



BARBADOS, AUGUST 3, 1012. 



Pricb ]d. 



CONTENTS 



canes and of the signs by which observers may be led 

 to expect their approach. 



British Guiiina, School 

 Gaidcn.s in 



Citrus Chiiiiiber of Sicily 



Coco-nuts in Zanzibar ... 



Copra-drying'. .Vrtificial... 



ClaviJH ( )inat;'. 



Cotton Notes : — 



.Selling of West Indian 



Cotton 

 Waste in Cotton- Spinn- 

 ing tlirough Irregular 

 Staple 



Euphorbias Yielding Rub- 

 bar 



Germination, Influence of 

 Light on 



Gleanings 



Guadeloupe, Agricultural 

 Experiment. s in 



Hurricanes 



Insect Notes : — 



Acc(junt of Twig Gird- 

 lers 



Page. 



. 249 

 249 

 244 

 254 



254 



246 



Page 



... 247 



249 



255 

 252 



245 

 241 



250 



jf 



and 



250 



248 



244 

 256 



248 

 245 



Insfct Notes {Cimhl.): 

 Natural Control 

 Citrus Mealy->)ug 

 Legumes in Orchards 



Mango, Dried 



Market Reports ... 



Notes and Comments 

 Roots, Absorption 



Excretion by 



Rubber, Names and 



Kinds of ... 

 Soil Moisture, Influence 



on Nitrification 



Students' Corner 



Sulphur as a Manure ... 

 Sugar Industry : — 



Sugar Indu.stryin Tndbi 243 

 Trees, Preservation of ... 251 

 Typlinid Bacillus and 



the Hou.se-Fly 249 



West Indian Cotton ... 254 

 West Indian Products ... 255 



... 253 



248 

 253 

 251 



Hurricanes. 



A hurricane is a cyclonic storm; that is to say 

 a storm in which the wind swings round in a circle, or 

 more correctly in a spiral, while the whole .-ystem 

 moves along more slowly. The origin of such storms 

 is near the Equator, and they result from a great 

 uprush of air which causes more air to flow in from 

 every side to take its place. The effect is that the 

 movement of the wind becomes circular; an interesting 

 analogy is afforded by the eddying of water running 

 out of a hole in the bottom of a basin — only that in this 

 case the causative movement of the fluid is downward 

 instead of upward. North of the Equator, this circular 

 movement is always in a direction opposite to that 

 normally taken by the hands of a watch, b-c-ause as 

 was discovered by Ferrel, the rotation of the earth 

 causes all moving bodies in the northern hemisphere to 

 swerve a little to the right, and this movement of all 

 the particles causes a general counter-clockwise 

 motion. In the southern hemisphere, the swerve is 

 to the left, and thus in cyclones there the wind travels 

 with the hands of a watch. 



^^;;i)ijk^ HE last occasion on which information regard- 

 ,ing hurricanes was published in the Agri- 

 [cultural News was that of the issue of 

 July 10, 1909. With the present approach of the 

 hurricane season, a convenient oppo.tiunity is afforded 

 for dealing again with the subject, so that readers 

 may be reminded of what is the true nature of hurri- 



Experience has shown that, while Trinidad and 

 Grenada are not likely to be vi.sited by a hu'ncane, 

 St. Vincent ard Barbados are much more subject to 

 such disturbances, or at least to the high winds that 

 occur toward the outer limit of the storm area. This 

 circumstance is easily understood when it is realized 

 that the storms, arising as has been said near the Equa- 

 tor, travel in the lower latitudes westward to north- 

 westward. Later, when they reach a latitude near thaft 



