THE TECHNOLOGIST. [Feb. 1, 1865. 



312 ON THE CULTIVATION OE 



G. Gutta, Wight, Illustr. of Indian Botany, i. 126, tab. 44 (exclus. 



synon. Linnsei). 

 Hebradendron cambogioides, Graham, in Hooker's Companion to 



Bot. Mag. ii. (1836, 193, tab. 27). 



Var. £. pedicellata ; floribus masculis pedicellatis (pedicelli ad 3 lin. 

 longi). 



Messrs. D'Almeida informed me that the number of gamboge-trees 

 cultivated on their plantation is twenty-eight, but that it might have 

 been increased to thousands had any pains been taken to do so. The 

 trees are from thirty-five to fifty feet in height, the largest having a cir- 

 cumference of three feet. They grow very luxuriantly, without any 

 attention, on the slope of a low hillock. Gamboge has at various times 

 been extracted from them, but rather, it would seem, as an object of 

 curiosity than for the purposes of commerce. 



Professor Bentley said that, in his opinion, Mr. Hanbury had now 

 put the last link in the chain of evidence necessary to prove the botani- 

 cal source of our commercial gamboge. Commercial gamboge, as was 

 well known, was derived from Siam ; it did not differ in any marked 

 particulars from the gamboge of Ceylon, and the botanical source of the 

 two kinds had now been satisfactorily traced to varieties of the same 

 species of Garcinia. 



ON THE CULTIVATION OF MEDICINAL PLANTS AT 

 MITCHAM. 



BY THOMAS T. P. BRUCE WARREN. 



The medicinal plants principally cultivated at Mitcham are — laven- 

 der, peppermint, chamomiles, roses, liquorice, and henbane. Large 

 quantities of poppies, rosemary, squirtiug cucumber, belladonna, and 

 pennyroyal are also cultivated, and smaller quantities of spearmint, 

 marshmallow, horehound, foxglove, stramonium, &c. 



The amount of ground laid out for the cultivation of mediciual plants 

 varies every year ; the total acreage under cultivation at present is 736 

 acres, and consists of — 



Chamomiles (Anihemis nobilis duplex) . 

 Roses (Rosa Gallica et Rosa Damascena) 

 Peppermint (Mentha piperita nigra) 

 Lavender (Lavandula vera) 

 Henbane (Hyoscyamus niger) 

 Liquorice (Glycyrrliiza glabra) 



Sundries 



Total .... 736 acres. 



55 



acres. 



. 119 





. 219 





. 172 



» 



30 





32 





109 





