extend more rapidly than ever. The whole quantity consumed in Europe last year, including beet-root sugar, was not less than 16,000,000 cwt. If peace be preserved and prosperity continue, the market for sugar will extend amazingly, and force the cultivation by free men in all tropical countries. British East India and Total of B.P. Years. Plantation Mauritius E.I. and Consumption tons. tons Mauritius tons. 1838-39 176,033 54,017 230,050 195,483 39-40 141,219 60,358 201,577 191,279 40-41 110,739 52,232 162,971 179,741 41-42 107,560 97,792 205,352 202,971 42-43 123,685 80,429 204,114 199,491 43-44 125,178 78,943 204,121 202,259 44-45 122,639 81,959 204,598 206,999 45-46 142,384 102,690 245,074 244,030 47-48 164,646 125,829 290,475 289,537 48-49 139,868 107,844 247,712 308,131 49-50 142,203 121,850 264,053 296,119 50-51 129,471 119,317 248,788 305,616 51-52 148,000 110,000 258,000 312,778 --The above figures refer to raw sugar only. At these periods, calculating from 1838-39, the duty on British sugar ranged from 24s. down to 10s. per cwt., and foreign slave-grown sugar from 63s. down to 14s. The greatest impetus was given to foreign sugar when the duties were reduced, in 1846. The extension of sugar cultivation in various countries where the climate is suitable, has recently attracted considerable attention among planters and merchants. The Australian Society of Sydney offered its Isis Gold Medal recently to the person who should have planted, before May, 1851, the greatest number of sugar canes in the colony. I have not heard whether any claim was put in for the premium, but I fear that the gold fever has diverted attention from any new agricultural pursuit, and that honorary gold medals are therefore unappreciated. Moreton Bay and the northern parts of the colony of New South Wales, are admirably suited to the growth of all descriptions of tropical products.