286 



THE AGRICULTURAL NEWS. 



September 9, 1905. 



JAMAICA ly liKf''.- I'.y Frank C'undrtU, F.S.A., 

 Secretary and Librarian of tlie Institute of Jamaica. Kimj- 

 Ston, Jamaica, 190fi. 



This is 'a new and entirely remodel letl editii.>ii of 

 a work wliicli first appeared under tlie title ".Jamaica in 

 189.5, a brief hand-book of iidormation for intending settlers 

 and others." ' 



Interesting sketches are given of tlie geography and 

 history of .Jamaica and of its peo[)le. The publication being 

 intended for intending settlers, considerable space is devoted 

 to agricultural notes. These notes, which deal with pen 

 keeping and with planting, are written by .some of the 

 foremost agriculturists of the island or by officers of the 

 Agricultural Department. 



This little book is nicely got up and copiously illustrated. 

 The illustrations show typical scenery and places of interest, 

 as well as some of the principal cultivations and typical 

 Jamaica jiolo ponies. 



An ajipendix contains a list of works of reference cm 

 Jamaica and a list of the imblications of the Institute of 

 Jamaica. There is also a gocd map (20x8 inches) of the 

 island, which will be found very useful for tourists, who are 

 likely to be interested also in the notes on fishing, shooting. 

 and other forms of sport. 



Mr. Cundall is to be congratulated upon the appearance 

 of this new issue, which, in addition to serving its i>urpose in 

 supplying information for intending settlers, should also 

 prove an acceptable guide for tourists and visitors, to the 

 requirements of whom a special chapter is devoted. 



VALUATION OF MANURES. 



it lias been suggested that it would be convenient 

 and interesting if there were jiubiished in the Af/rl- 

 cultural Ncirs the scale used by the Analytical Com- 

 mittee of the Barbado.s Agricultural Society for the 

 valuation of nitrogen, plKJsphate, j)otash, etc., in 

 manures. The scale is as follows : — • 



Value per unit (i.e., 1 per cent.) per ton of 2,240 Itj. : — . 

 Ammonia (from suliihate of anniionia, nitrate of soda, 



dried blood, tlesh, meal, and bones finely ground) !?2'-10' 

 Ammonia (from above sources in mixed manures and 



in genuine Peruvian guano or similar manures) $3'0O 

 Ammonia (from sheep manures and fish scrajis in 



mixtures) ^2-6(> 



Ammonia (from hoof and horn, hair, and similar 



materials in mixtures) ... ... ... ... .?2-00' 



Phosphates soluble in mixed manures or guanos... -90 

 reverted „ „ „ „ „ ... -70 



„ in.soluble „ „ „ „ „ ... •2.5' 



Phospliates (from finel}' ground raw cir steamed bones 



in ndxed manures) ... ... ... ... •CO' 



Potash (as suliihate or nitrate in mixed manures) ... .?l-30' 



The above only apply to mixtures in which 

 Ammonia does not exceed 14 per cent. 

 Soluble [ihosphates ,, 20 i)er cent. 

 Potash ,, 12 per cent, 



any excess over the above percentages will be 

 calculated as raw material. 

 For genuine Peruvian or dissolved Peruvian guano- 

 10 [ler cent, is added to the valuation made as above. 



By direction of the Analytical Committee, in the case of 

 .samples taken under 'The Fertilizers and Feeding-stuffs Act,, 

 1894," the valuation is calculated u[inn the (juaranteed 

 analysis. 



METHODS OF CHEMICAL COXTROL I\ 

 CANE .•sua A R FACTORIES: By H. C. Prinsen Cleerligs, 

 Director of the West Java Sugar Experiment Station. 

 Altviiich'tin (Manclipsti-r) : Norman Rodger, 190'i. Price 

 3s. 6(?. net. 



A series of articles by the author, which appeared 

 during last year in the Inti-ynational Sugar Journal, are here 

 brouicbt together in book form, together with numerous tables 

 and plans not hitherto published. 



Full directions are given for sampling cane and cane 

 products for analysis, and for carrying out the analytical 

 methods involved in connexion with chemical control in 

 .sugar factories. 



The first part deals with the daily report. In part ii 

 directions are given for compiling a monthly (or weekly, as 

 the case may be) report from the data contained in the daily 

 report. 



Part iii contains a full list of the instruments^ and 

 utensils reciuircd for the execution of the analyses nientioned 

 in this treatise. The verification and standardization of 

 instruments are also dealt with. 



Experiment Station workers, as well as students in 

 trainino- in chemical laboratories connected with sugar-cane 

 experiments, are likely to find this a handy little work for 

 reference and guidance. 



HEDGE PLANTS. 



The following note on some usefid jjlants for 

 iiedges is extracted from the Annual Report on the 

 Montserrat Botanic Station : — 



Cu.shaw [Acacia torfuosa). — This was raised from seeds- 

 in 190."), and is now 6 feet in height and almost as much 

 through. It forms a formidable spiny hedge, though it lacks 

 that density of foliage necessary to make a hedge attractive. 



Wild Coffee [C/crodcndron aculeatwn). — In habit this 

 somewhat resembles English privet, and makes a very 

 commendable hedge. This was raised from cuttings in 1903, 

 and is not .5 feet in height and 4 feet through. 



Acacia .y/iaeroccpha/a. — This is a quick-growing plant,, 

 and carries dense, dark-green foliage accompanied by large 

 spines, liaised in 1901 from seeds, the hedge is now 3 feet 

 in height and is very vigorous. 



'J'riji/iasia Auraiitio/a. — This is one of the most attrac- 

 tive of our hedges, though of slow growth. It carries dense 

 coriaceous foliage, and is of a beautiful green. Raised in 

 1804, it is now 2i feet in height. 



Bread and cheese {Inga ■itvgtiis-cati).~~'\\'lmre a low, 

 dense hedge is needed, this is excellent ; but the pendulous 

 habit of the growth prevents it from attaining nnich height. 



P.arbados Cherry (Malpigliia glabra). — An excellent 

 hedge of this plant is found at the Grove : with frequent 

 trimming, few plants can surpass it for hedge purposes. 



Limes. — Where wind-breaks arc wanted that will give 

 some return, limes might be advantageously planted. The 

 lime hedge at Grove Staticui, about 10 feet high, gives a good 

 yield of fruit. 



