180 
Indians Ignorant of the Use of Quinine. 
produced under a tropical climate and a continually damp atmosphere, 
into the tranquil bed of the Kukenani. Mosses, lichens, and ferns overran 
the immense blocks of gneiss that lay around its base, and covered the 
sandstone strata which here and there came to light, with a green puffy 
cushion, while climbing Aroids, Monstera cannaefolia Schott, 
Anthuruim gracile Lindl, and other creepers stretched themselves over 
the same like scattered garlands: the most beautiful tree-ferns shot out 
from between the migiity boulders, and the shadows of tlieir swaying 
fronds danced like elf and fairy upon the verdant cloth. Even th(i 
clefts in tlie masses of jaspei- were not without their living clothing: 
small well-noui-ished ferns, JinifirrinaDniac which stuck on to the red 
walls in\ more or less thick turf, a new and glorious beautifully 
scented Cjfpripediiim, Ci/pii pr(li}im F^cJiomhiirfi1:inninn Klotzsch et 
Eeichb., and the dainty Amirlonia salicnriapfoTia Humb. Bonp. had 
taken up their abodes in these fissures. The wall of vegetation that 
rose up on either side consisted of Qxalra roftca Aubl., Kiclmrj/rrn 
fnunifitifolin , Gomphut. Vocliu.^id and white lilossomed species of 
Psidimn and Lnvriifi, above which the proud and slender Eiifrrpr 
waved to and fro with every breath of wind. On my way to the top T 
found Rnpritca Fridcrici-Aiigiiftti Schomb. in the thick forest. 
Amongst giant Oj/pcrnrnir, particnlarlv DipTasia hnratorfolia "Rich., 
Ci/pmia fern.T Rich, with its bromelia-like sharp 5 to 6 ft. long leaves, 
and Tillaudfiia hromcTiafnlia , which seem'ed to sprout out from the 
stems of the trees, I reached a point of view that enabled me tO' gaze 
over the whole of the glorious spectacle. The river Rue comes from the 
North towards this terrible precipice in a bed from 30 to 40 ft. wide. It 
was impossible for me at least to keep my eyes for long on the fröthing 
whirl of waters: thousands and thousands of quizzing and leering eyes 
peeped out of the thundering waves, the trees left the s])olts that had 
nourished them so well, the atmovsphere became a heaving sea out of 
which innumerable lightning flashes flared in front of me, another second 
and a sickly giddiness would have dragged me down into the unfathomalde 
depths. The Fall and the junction of the Rue with the Kukenam lies in 
44° 4?,' 4" lat. N. and 01° 5' long. W. 
421. Delighted with what we had seen, we returned to Barapang 
through the gloriouslv enchanted garden of flowers, and were attracted 
by a number of beautiful Lade'nhcrrilnft : on the Humirida Ranges, at a 
height of 3.ß90 ft. above sea-level I had often noted them as bushes,' but 
here at a height of 3,230 feet the Ladenhergia Schomhnrgkii and 
Roroimae were found only as trees. 
422. There cannot possibly exist such an equally comprehensive 
literature regarding any family of plants as there* is concerning the 
Citwhonae ; and yet the knowledge of its geographical distrilmtion in 
America still leaves much to be desired, for every recent record of travel 
has always something new to add to the older ones. However frequent 
the attempts to ascribe the discovei*y of its action to this or that parificu- 
lar circumstance, all the argumen'ts that have been brought forward 
in this connection must l)e relegated to the limbo of Fiction that has 
always accompanied every scientific discovery. According to Geoffroy, 
