Travelling , as performed by Camels. ~ 
It appears, that the direft diftance between Aleppo and 
Buflorah, Is 621 geographic miles, or 720 Britifli, nearly. And 
Mr. Carmichael’s route, traced by a compafs through all 
its principal bendings, and calculated trigonometrically, gives 
688 geographic miles, or of Britifli 797. It follows then, of 
courfe, that as the fame gentleman was 322 hours on the road, 
the mean hourly rate of the camel’s motion, was 2,475 Britifli 
miles. Colonel Capper’s route, though eafily traced on the 
map, is not corredt enough in its particulars, to ferve as an 
authority equal to Mr. Carmichael’s; and the like may be 
faid of Mr. Hunter’s : but they muft both be allowed to cor- 
roborate Mr. Carmichael’s in a general way; for as nearly 
as Colonel Capper’s route can be traced, over the Chaldean 
Defert (and, as we have before obferved, the track is nearly 
the fame at all times, in all other parts of the Defert) the 
hourly rate of his camels was 2,51 per hour; and that of Mr. 
Hunter’s 2,585. 
We come now to the little desert route. It has been 
noticed, that Mr. Irwin employed 128 hours on his journey 
from Aleppo to Annah ; and 65! more (allowing for his acce- 
lerated rate 3 hours, fee p. 135*) between Annah and Bagdad; 
altogether 193! hours between Aleppo and Bagdad. The diredt 
diftance between thofe places is 393 geographic miles; and by 
the route traced by Mr. Irwin, the road diflance comes out 
about 414I, or Britifli miles 480*. And this number, 
divided by 1935, gives 2,48 per hour for the camel’s rate ; or 
Not that the diftance between thofe places is fo much as 480 miles by the 
dire£t road: it is probably lefs than 47 °- ® ut Mr. Irwin’s party took a cir- 
cuitous courfe to the fouthward, between Aleppo and Ain il Room, to avpid an 
enemy that lay in the way. He eftimated his diftance at 493 miles. 
Vol. LXXXI. U 
within 
