30 
Schomburgk, Richard. On the Urari; the Deadly Arrow Poison 
of the Macusis, an Indian Tribe in British Guiana. Adelaide, 
1879. 
im Thum, E. F. Among the Indians of Guiana. London, 1883. 
Svo PP- 445, illustrated. 
im poe E. F. Palms of Britia Guiana : Timehri, iii. (1884), 
p. 219-276. Also Reprin 
Oliver, D., and im Thurn, E. F. The Botany of the Roraima 
Expedition of 1884: Transactions of the Linnean Society, 
2 series, Botany, ii., pp. 249-300, tt. 37-56. The descriptions 
repeated in Timehri, v., 1886, pp. 145-223. 
Hawtayne, G. H. Description of British Guiana, with Notes and 
List of Exhibits. Indian and Colonial Exhibition, 1886. 
Jenman, G. S. Report on some of the Indiarubber and Gutta- 
percha Trees of British Guiana. Georgetown, 1883. 
Jenman, G. S. Report on Balata and the Balata Industry, Forest 
Laws, &c. Georgetown, 1885. 
Jenman, G. Primeval Forests of British Guian 
ee Giironicle 3 ee i (1887), pp. 541-543, 513- 
575 ; 637-639. 
Jenman, G. S. Report on Macwarrieballi (Forsteronia gracilis), 
new Indiarubber Plant of British Guiana. Georgetown, 
ae on the sugar industry valuable information is contained 
in “ Reports on the Agricultural Work in the Botanical Gardens,” 
by G.S. Jenman, Government Botanist, and J. B. Harrison, Govern- 
ment Analyst, for the years 1590 ; 1891-92 ; ; and 1893-4-5. The 
. sonst Printer, Georgetown. 
A summary of these Reports is contained in ‘The Results 
of Recent Scientific Se ase into e Pri Improv e- 
ment of the Sugar Cane,” by J. B. son. Timehri (1897 
pp. aa Sugar Cane (1897. pp. 118 139 ; 453-475). [Also a 
83. In the development of subsidiary industries the Botanic 
gic at Georgetown are capable of holt valuable assistance. 
nformation respecting 
oe resources of the Colony, and he has’ distributed numerous 
o 
community. He has also taken an active part in the agricultural 
experiments carried on in conjunction with Professor Harrison to 
improve the sugar-yielding properties of the cane, and the 
