REMARKS ON TRAVELS 
MARCH OF THE CARAVANS. 
HEAVILY 
MODERATELY 
LIGHTLY 
laden. 
laden. 
laden. 
\ per day 
i 
per day 
per day 
per hour. 
of 8 
per hour. 
of 8 
per hour. 
of 10 
hours. 
hours. 
hours. 
Geograph. miles. 
Geograph. miles. 
Geograph. miles. 
Egyptian expedition. 
2 
>> 
>> 
in 
)> 
>> 
17 1 
Captain Lyon. . . . 
>> 
y> 
above 17 
M. Walckenaer. . . 
}t 
15* 
}> 
)) 
above 22 
M. Caillie's travels. 
2 
1 0 
>) 
Computation from 
\ " 
15 to 16 
18 A 
1 • , 
24t 
miscellaneous data. 
N.B. To reduce these numbers into English miles^ they 
must be worked by the proportion of 60 : 69.1 
* After all deductions. 
t Or from 24 to 26, on account of a ten hours' march of tw^o miles and 
six-tenths an hour. 
X The learned M. Eyries in his Geographical Observations on the discoveries 
of M. Mollien, confines the day's journey to five leagues, or twelve geographical 
miles ; this estimate applies only to certain cases, for example the long extended 
journeys of pedestrians, but not to the days' journeys of ordinary caravans. 
I had at first intended to construct separately each 
of M. Caillie's routes, taking into consideration in each 
particular case the difficulties of the ground^ the compo- 
