160 Mr Livingstone oii the Thermal Springs o/* Yom-Maek. 
Reeves’s foot having sunk pretty deep into the swamp near this 
spring, he experienced a painful sensation of heat ; I w^as there- 
fore unwilling to follow him nearer than about ten yards. 
The temperature of the ground here is too high for shrubs. 
Indeed, in some places the ground is quite bare, and, for the 
extent of a circle, whose radius may be estimated at 100 feet, 
we observed only patches of carex, j uncus, and the like. 
The space occupied by the hot-springs may be about a mile 
in circumference, forming a swamp, the north half of which is 
extremely bare of shrubs, but the remaining portion is covered 
with the shrubs before mentioned, from five to six feet high. 
The Croton sebiferum tree appeared in some places of the size 
of a shrub. There we observed no Crinums. 
This spot is placed near the centre of a most beautiful am- 
phitheatre, the circumference of which is from fifteen to eigh- 
teen miles. The outline is formed by a number of mountains, 
from 800 to 1300 feet high. These mountains rise with a 
slope of about 45°, which has the appearance of being broken 
by ridge lines into various compartments, of a triangular or 
nearly pyramidal form, so softened by a complete covering of 
verdyre to the summit, that with the mild sunshine which 
the haze of the morning admitted, all the outlines appeared 
rounded in the most pleasing manner. The effect was exceed- 
ingly delightful, every object seemed, in the language of the 
painters, in complete repose. 
No rock or other mineral production could be perceived, ex- 
cepting one large block which (from being familiar wnth such 
masses,) I judge to be of granite, intersected at nearly right 
angles with lines of quartz, situated from 500 to 600 feet up a 
mountain, bearing SE. distance three miles. 
From a general similarity in the appearance of these moun- 
tains to some we have had an opportunity of examining, and 
also from the same sharp ridges appearing when passing them to 
the west, we have been induced to infer a similarity of struc- 
ture, which may be shortly thus described. The high sharp 
ridges consist of vertical veins or walls of quartz, seldom ex- 
ceeding a yard in thickness ; while . the rock thus intersect- 
ed is granite, with a few appearances of stratification ; but 
where these are observed, the inclination is highly vertical. 
