DIVI-DIVI. 



503 



EXPORTS OF GAMBIER FROM SINGAPORE, WITH THE OFFICIAL VALUE IN RUPEES. 



1840-41 . . Exported . 



,, Growth of Singapore 



1841-42 . . Exported . 



,, Growth of Singapore 



1842-43 . . Exported . 



Growth of Singapore 



1843-44 . . Exported . 



,, Growth of Singapore 



1844-45 . . Exported . 



,, Growth of Singapore 



1845-46 . . Exported . 



,, Growth of Singapore 



1846-47 . . Exported . 



,, Growth of Singapore 



Piculs. 



79,508 



59,325 



93,340 



47,696 



148,746 



110,151 



139,050 



121,791 



157,654 



134,528 



110,766 



75,797 



173,117 



143,795 



Value in rupees. 

 . 457,560 



. 470,790 

 . 548,281 

 . 584,449 

 . 539,978 

 . 425,643 

 591,943 



The exports of gambler from Singapore were as follows : 



1849 

 1850 

 1851 

 1852 



a England. 



piculs. 

 134,546 



87,611 



68,365 



68,045 



To the Continent, 

 piculs. 



6,121 

 16,166 

 11,639 



9,006 



Total. 



piculg. 



140,667 



103,777 

 80,004 

 77,051 



The exports of cutch from Pinang, in the last four years, have 

 been: 1849, 3,693 piculs; 1850, 900; 1851, 4,143; 1852, 

 3,880 ; or, on an average, 197 tons. 



DIYI-DITI is the commercial name for the curved pod of a 

 leguminous shrub, Ccesalpinia coriaria, which is sometimes im- 

 ported from Carthage. Its tannin differs materially from that 

 of nutgalls. The quantity of mucilage which it contains pre- 

 cludes it from the use of dyers ; but, as it furnishes nearly 50 

 per cent, of tannin, it is largely used by curriers. It is imported 

 into Liverpool from Rio de la Hacha, Maracaibo, and Savanila. 400 

 tons of the seed pods and bark of the Algaroba, or Locust-tree 

 (Prosopis pallida), were imported in 1849 into Liverpool from 

 Valparaiso, as a substitute for divi-divi in tanning. 3,200 Ibs. 

 of divi-divi were exported from the port of Augostara, in 1846. 



Specimens of divi-divi which had been raised at Calcutta were 

 shown in the Indian department of the Great Exhibition. 



Dr. Hamilton states that, according to some admirably con- 

 ducted experiments of Mr. Rootsey, of Bristol, undertaken at 

 his request, the pods of divi-divi contain above 50 per cent, of 

 tannin. It appears also, from trials made, that one part of divi- 

 divi is sufficient for tanning as much leather as four parts of bark, 

 and the process occupies but one-third of the time. 



The average produce of pods from a full-grown tree has been 

 estimated at 100 Ibs. weight, one-fourth of which consists of 

 seeds or refuse, leaving about 75 Ibs. of marketable matter. 



At an interval of six feet apart, an acre of ground will contain 

 1,210 trees, yielding an average of 810 cwts., and 30 pounds, 

 or above 40| tons of marketable matter, worth, at only 

 5 per ton, 200. Should the interval between the trees be 



