286 REVIEWS. 



Punatoo.— The pulp of the fruit is preserved for use in the following 

 manner. The ripe fruits are put into old baskets containing water, and 

 are then squeezed by the hand till the pulp forms a jelly. Layers of 

 this jelly are spread on palmyra leaf mats to dry on stages. Layer after 

 layer is deposited to the number of about fifteen. These are left in the 

 sun about a fortnight or three weeks, only covered at night, and pro- 

 tected from the dew and rain. The best sort is called Pimatos, and the 

 tough withery kind made from the remaining fruits gathered at the end 

 of the season, which is much in favour, Tot Punatoo. Punatoo is sold 

 by the mat at 3s. to 6s. each (about 1,000 pints of three nuts each being 

 sufficient for a mat), and is the chief food of the islanders of Ceylon, and 

 of the poorer classes of the Peninsula, for several months of the year. 



lUiimtis. 



A Treatise on Sugae Machinery, &c. By N. P. Burgh, Engineer. 

 E. and F. N. Spon. 



This is a most valuable work on a subject on which but little has 

 hitherto been published. The manufacture of sugar machinery in this 

 country rests in very few hands, and there has been a disposition to 

 withhold rather than to furnish any information to the public, unless it 

 were some specific inquiry as to the cost of parts of machinery. Mr. 

 Burgh's work comes, therefore, most opportunely, looking at the high 

 prices of sugar, and the steady extension of cultivation in the East and 

 West Indies, the Mauritius, Natal, Brazil, and other quarters. It 

 treats of the processes of producing sugar from the cane, and refining 

 moist and loaf sugar, home and colonial, as well as the practical mode 

 of designing, manufacturing, and erecting the machinery, together with 

 rules for the proportions and estimates. The estimates given are 

 very full, clear, and explicit on all points of cost for the minutest 

 article. Crushing mills, boilers, clarifiers, heaters, pumps, tanks, 

 vacuum pumps, receivers, centrifugal machines, charcoal- burning fur- 

 naces, and retorts, are all figured and described in four single and 

 twelve folding plates. 



Mr. Burgh's work will be equally valuable to the producers and 

 refiners on the Continent, as to the sugar planters of the two Indies, 

 Natal, and Louisiana, and the refiners of New South Wales, Victoria, 

 and America. The whole getting up of the work is admirable, am' 

 will command for it a ready sale in all quarters interested in sugar pro 

 duction. 



