153 
better suited for cultivation at low etinm to yield large crops of 
leaves “ for use in pharmacy and for Coca 
Leaves of the typical (Huanuco) pihy Coca were received 
from Ceylon in n 1888, 0 ud the best were found to yield 0°60 per cent. 
of crystallisable with no uncrystallisable alkaloid cocaine. T 
leaves had been grown at Dolosbagie, at an elevation of 2,300 feet 
e have tur received from Dr. Trimen, F.R.S., Director of the 
ar. 
Trendistgodk Garden’, 1 in the ieelattds ipe Ceylon. "These leaves were 
submitted to Mr. red G. Howard, F.C. S. F.L.S., who has bee 
good enough to furnish a result of his analysis. The dried leaves 
bec M PRU ‘alkaloid, 0°56 per cent.; uncrystallisable alkaloid, 
47 per cent.; total, 1- -03 per cent. The total yield of alkaloid is 
a ger than i in any leaves examined by Mr. Howard in 1888 (see Kew 
Bulletin, 1889, p. 8), but the large Roper on of uncrystallisable 
stia fully agrees with the general character of Truxillo Coca. 
he following correspondence gives further particulars respecting 
these Ceylon Coca leaves 
Mr. ALFRED G. Howanp to ROYAL GARDENS, Kew. 
Stratford, near cm eue 
DEAR Sir June 6, 189 
Now have the pleasure to —— the analysis hs the ota 
leaves you van me on May Ist, as follow: 
Crystallised alkaloid - - 0°56 per cent. 
Uncrystallised alkaloid: < - - 0:47 
9 
Total. «103 
” 
You will notice that the amount of uncrystallised alkaloid is large, 
and Suerte would detract largely from their value from a commercial 
point of vie 
I am Ron that I have not been able to let you have the resalt 
before, but I only finished it yesterday, as I was exceedingly busy all 
last month. 
Yours, &c. 
(Signed) ALFRED G. HOWARD. 
John R. Jackson, Esq., A.L.S. 
Messrs. Burcoyrne, BuURBIDGES & Co. to ROYAL GARDENS, Kew. 
16, Coleman Street, London, E.C., 
DEAR SIR July 25, 1893. 
In reply to your favour of the 21st instant, I cannot give you a 
very favourable report of the position of Coca leaves at the present 
moment. Stocks in London, Liverpool, and on the Continent are large 
and the demand at present is very slow. Good green Truxillo leaves 
are held for 84d. p lb., and fair Huanuco range from 15. 4d. to 1s. 6d., 
according to quality 
I remain, &c. 
John R. Jackson, Esq. (Signed) H. ARNOLD. 
Royal Gardens, Kew. 
