A FORTNIGHTLY REVIEW 



OF THE 



IMPERIAL DEPARTMENT OF AGRICULTURE FOR THE WEST INDIES. 



LIBWAR'i 

 NEW YOR 

 BOTANIC^ 



OaKOHN 



Vol. VIII. No. 188. 



BARBADOS, JULY 10, 1909. 



Price Id. 





CONTENTS. 



Page. 

 Agriculture in South 



Miinchestur, Jaiii;uc;i 

 Agricultural Productii m, 



Phiises iif 



Bahamas, Fruit Productinii 



in 



Birdii and Agriculture ... 



r 



Catalase „{ Sdils 



t'lilnnial Kxliiliitinn 



Culuur ill Siiils 



Ocmstructiiin (if Buildings 

 in Earthquake 



Countries .. 



Cotton Notes : — 



Cotton Cultivation in 



Ceylon 



Cotton Hylirid.s, Su])- 

 pres.sed an<l Intensified 



Characters in 



West Indian Cotton ... 



Cowpea, History of 



Cowpeas 



Department News 



Forestry in Hawaii 



Gleanings 



Hurricanes 



Insect Notes : — 



The House-fly 



21".» 



•217 



212 

 215 



218 

 213 

 21(5 



217 



214 



Market Rejjorts 

 Notes and Comments 

 Paper Mamif.icture fr 



Wood 1 'rod nets 

 Reading Courses .and 



Kxaminations 



Rice in British (iuiaiia ... 

 Rubber-tapping Method 

 Rum Manufactme at 



Barbados 



Students' Corner 



Sugar Industry : — 

 Sugar Crop of British 



India 



The Bourbon Cvne 

 Water Needed for 



Devehipment <if 



Sugar-cane 



Su)jeriihosphate, and Lime 



in the Soil 



The Late Dr. Christian 



Branch 



The S..y Be.m 



Tobacco Culture in South 



Africa 



West African Oil Palm... 

 West Indian Products ... 

 Wihl Ipecacuanha, 



Poisonous Eftect of 



on Cattle 



224 

 21(; 



... 21G 



... 221 



... 223 



212 



217 

 221 



211 

 211 



211 



215 



217 

 222 



217 

 221 



Hui-ricanes. 



Mm^ S the hurricane season is approaching, a few 

 0/31 w--' I Qj^gg ^^,jj.]^ regard to the nature of these 

 ''■4?!? peculiar storms may be of interest to the 

 readers of the Agricultunil Xci.rs. 



A hurricane is a storm in which there is a great 

 rush of air towards and around the centre, the whole 

 mass moving slowly along. These storms originate 

 near the equator and generally travel in a westerly or 

 north-weaferiy direction, in the lower latitudes: recurve 



at about the latitude of the Bahnmas, and take a north- 

 easterly direction across the Atlantic. During the so- 

 called hurricane season, storms originate at from 10 to 

 11 degrees north of the equator, in mid-ocean. 



It will be seen from what has been said, that 

 Trinidad and Grenada, and even some of the islands of 

 the Grenafiines, are not at all likely to encounter one 

 of these storms. St. Vincent and Barbados, however, 

 and all the islands to the north lie in the stoiin track. 

 The origin of these storms may be explained in the 

 following manner. 



If a mass of air, [iracticall}' at rest, becomes very 

 highly heated, a strong upward current is induced, and 

 this creates a rush of air from all directions towards 

 the point at which this upward current leaves the 

 earth's surface. It was discovered b}" Ferrel on purely 

 mathematical grounds, that on account of the rotation 

 of the earth on its axis, all moving bodies to the north 

 of the equator swerve slightly to the right. This, it will 

 be seen, would cause the rotating iriovement of the 

 cyclonic storm. The rotation is thus from right to left, 

 or in a direction opposite to the movements of the 

 hands of a watch. South of the equator, moving bodies 

 swerve to the left, and the rotation of the hurricane 

 is from left to right. 



In considering hurricanes it is ncce.ssary to dis- 

 tinguish clearly between the two distinct movements of 

 the storm, which are known as rotation and translation. 

 The rotation of the storm is the movement of the 

 currents of air around the centre, and the translation 

 is the forward progression ofthe whole storui along the 

 storm track. 



