THE. SOURCE OF THE NILE 33 
we found no fuch tickling or irritation on our legs as we 
had done at Loheia, probably becaufe the foil was here lefs 
impregnated with falt. 
We obferved eve for the firft time, three remarkable 
circumftances fhewing the increafe.of heat. I had carried 
with me feveral fteel plates for making fcrews of different 
fizes. The heat had fo {welled the pin, or male {crew, that 
it was cut nearly one-third through by the edge of the fe- 
male. The fealing-wax, of which we had procured a frefh 
parcel from the India fhips, was fully more fluid, while ly- 
ing in our boxes, than tar. The third was the colour of the 
{pirit in the thermometer, which was quite difcharged, and 
{ticking in maffes at unequal heights, while the liquor 
_ was clear like {pring-water. 
‘Masuau is very unwholefome, as, indeed, is the whole 
coaft of the Red Sea from Suez to Babelmandeb, but more 
efpecially between the tropics. Violent fevers, called there 
nedad, make the principal figure in this fatal lift, and gene- 
rally terminate the third day in death. If the patient fur- 
vives till the fifth day, he very often recovers by drinking 
water only, and throwing a quantity of cold water upon 
him, even in his bed, where he is permitted to lie without 
attempting to make him dry, or change his bed, till ano- 
ther deluge adds to the firft. 
“THERE is no remedy fo fovereign here as the bark; but 
it muit be given in very different times and manners from 
thofe purfued in Europe. Were a phyfician to take time to 
prepare his patient for the bark, by firft giving him purga- 
tives, he would be dead of the fever before his preparation 
Vou. III, ‘E was 
