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A FORTNIGHTLY REVIEW ^,b«, 



OF THE Mj>V V, 



IMPERIAL DEPARTMENT OF AGRICULTURE FOR THE WEST INDIES. ^"'^^' 



Vol. X. No. 2i9. 



BARBADOS, NOVEMBER 11, 1911. 



Price Id. 



CONTENTS. 



AglMCuUui'e in (ire.-it Biil- 

 ahi, 1011 



Agriculture hi the Ba- 

 haims, 1910-11 



Agricultuie in the East; 

 Africa Protectorate ... 



Avocado Tear in the 



United States 



Bookshelf 



Care with I'oi.sonous Sul)- 

 stances Used in Cotton 

 Growing 



Chick Pea in St. Lucia, 

 Trml Hiih 



Cocoa-nut Growing in the 

 Virgin Lslands, Pros- 

 pects of 



Concrete in Warm Cli- 

 mates. Special Uses for 



Cotton Notes : — 



The liiitish Cotton 



Growing Association 

 We.st Indian Cotton ... 



Department News 



Fungus Notes : — 



Observations on Root 

 Diseases in the West 

 Indies. Part I 



Page. 



. 307 



. 365 



361 



350 

 355 



Page. 



301 

 357 



356 

 353 



358 

 358 

 354 



306 



Gleanings , ... 



Green Manures, VaKue of 



Ditferenl Crops .as ... 



Hevea Seeds in Grenada, 



Genuination of 



Insect Note.s : — 



Pest Laws in Porto Rico 

 Seuie Ii.sect Injuries to 



Ground Nuts 



International Agricultural 

 I Congress at Madrid ... 



1 Market Rejiorts , 



I Notes and Comments ... 

 i Queensland Timl)er Indus- 



! try 



1 Rubber fi'om Castilloa, 

 New Metln>d of Ob- 

 taining 



Rubber in the Honduras 



Republic 



Students' Corner 



Sugar Industry : — 



Sugar as a Catch Ciop 



witli Kuldier 



Tephrosia Purpurea, Glu- 



Coside from 



West Indian Agricultural 

 Conference, 1912 ... 



364 

 367 

 303 

 362 

 362 



359 



3C8 

 360 



359 



361 

 365 



354 

 360 



:i60 



Special Uses for Concrete in 

 Warm Climates. 



fyS^ iTJ^^HIS subject received attention in an article 

 fx^ ^^Von page Z'2?> of the last volume of %\\q Ayri- 

 ^^lU^^cuUural Nctvs,^vh.eTe: a description was given 

 of interesting work that had been done in Antigua in 

 the making of concrete posts for u.se on estates. Further 

 information regarding the matter is presented in 



a useful illustrated article in the Journal d'Ayrlcultxire 

 Tropicale for September of this year. 



It is pointed out in this article, firstly, that the 

 employment of concrete, either reinforced or not, has 

 only been in existence — and that not to anj' great 

 extent — for about fifteen years, notwithstanding the fact 

 that the properties of concrete render its use possible in 

 many different ways, among these being for the making 

 of piles, water channels, substitutes for carpenters' work, 

 bridges, or even of entire buildings. 



The apparatus employed for the purpose is very 

 similar to machines that are used in moulding ordinary 

 bricks, and it is arranged so that by the simple changing 

 of the moulds and arrangements for pugging, blocks 

 ia many various shapes can be obtained, which may be 

 used in exactly the same way as cut stones. Concrete 

 thus employed is undoubtedly a valuable resource in 

 regions where there are no suitable stones and no 

 argillaceous material that might be used for making 

 bricks. This is especially true in view of the fact that 

 at the present time cement, for making concrete, is 

 exported to all parts of the work], and that, with proper 

 care, it reaches these in good condition. Difficulties of 

 transport, too, are small, because cement is usually 

 packed in bags of such a size that they can be carried 

 on the backs of porters, or even by animals capable of 

 supporting only small weights. In regard to the other 

 mode of packing, namely in barrels, this is also conve- 

 nient, as the barrels may, witliin reasonable limits, be 

 rolled to their destination. 



The fact that the employment of suitable appara- 

 tus has enabled the number of ways in which concrete 

 may be used to be increased to a very large extent 

 is of the greatest importance to agriculturists in hot 



