482. TRAVELS TO DISCOVER: 
fay hot, fome other explanation ‘is neceffary concerning the- 
place where we are,in orderto give an adequate idea of the- 
fenfations of that heat upon the body, and the effects of it: 
upon the lungs. The degree of the thermometer conveys. 
this very imperfeCtly ;. go° is exceflively. hot at Loheia in. 
Arabia Felix, and yet the latitude of Loheia is but 15°, where+- 
as go® at Sennaar is, as to fenfe, only warm, although Sen-- 
naar, as we have faid, is in lat. 13°. 
Art Sennaar, then, I call it cold, when one, fully cloathed: 
and at reft, feels himfelf in want of fire. I call it cool, when. 
one, fully cloathed and at reft, feels he:could bear more co=. 
vering all over, or in part, more than he has’ then on. I 
call it semperate, when aman, fo cloathed and at reft, feels. no 
fuch want, and can take moderate exercife, fuch as walking : 
about a room without fweating. I call it warm, when a man, . 
fo cloathed, does not fweat when.at reft, but, upon, mode-. 
rate motion, fweats, and again cools. I call it Jot, when a aie 
fweats at reft, and-exceflively on. moderate motion. I calk. 
it very hot, when aman, with thin or little cloathing, fweats . 
much though at reft. Icallit excefive hot, when a man, in his. 
fhirt, at reft, fweats exceflively, when all motion is painful, . 
and the knees feel feeble as if after a fever.. I call it extreme 
Jot, when the ftrength fails, a difpofition to faint comes on; . 
a ftraitnefs is found’in the temples, as if a fmall cord was : 
drawn tight around the head, the voice impaired, the fkin: 
dry, and the head feems more than ordinary large and light. . 
This, I apprehend, denotes death at hand, as. we have feen - 
in the initance of Imhanzara, in our journey to Teawa,; but. 
this is rarely or never effected by the fun alone, without the - 
addition of that poifonous wind which purfued us through © 
Atbara, and.will. be. more ee defcribed in our 
jouniiex, 
