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iguotum. 



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Extract of a Letter from Thomas C, Aechee, Esq., dated 



pool Eoyal Ins1 

 Esq., Pres. L.S, 



[Read December 2nd, 1856.] 



In one of the newspaper reports of a recent meeting of the Lin- 

 nean Society, I read with much interest some remarks by Dr. W. 

 E. Daniell on the Kobo-tree of Sierra Leone ( Chiihourtia, Bennett). 

 To the observations of Dr. Daniell, I can add one or two which 

 *^y be acceptable to your botanical Members, 



The gum-resin which Dr. Daniell speaks of as being collected 

 from Quihourtia copallifera is probably one of three kinds which 

 are very largely imported into Liverpool imder the names of 

 African Copal, African TeUow-gum, and African Eed-gum, speci- 

 iJaens of which I shall have much pleasure in forwarding to you if 

 they would be acceptable. They differ very much in appearance, 

 wid I believe in value. The first is in rounded tears of variable 

 size, but usually large, often very transparent, but rather dull on 

 their surfaces ; the colour a pale straw-yeUow. The other two are 

 III masses which are fragmentary in appearance, the yellow one 

 usually less so than the red ; the latter is often rendered yellowish 

 in colour by adherent dust. The yellow sort is often semi-opaline 

 from a milkiness which exists in some of the masses. I have seen 

 one piece (evidently only a portion of a gigantic tear) which 

 "w^eighed nearly three pounds. The usual size of the fragments is 

 that of a hen's egg. The colour of the red kind is rather redder 

 than the oriental topaz, and may be called a reddish-yellow. The 

 quantity of these gums received in this port is enormous, when we 

 I'eflect upon the labour required for the collection of such pro- 

 ducts : more than 150 tons were imported in 1855 ; the whole of 

 >^bich I believe is consumed in the manufacture of varnishes, xmder 

 tbe general name oi Copal. 

 Trusting these remarks may not be out of place, 



I remain, dear Sir, 



Tours faithfully, 



, ^ Thos. C. Abcher. 



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