232 
MISCELLANEA. 
dently dull and uncomfortable, we removed all our finny patients 
to a lighter situation ; and, simple as this means of cure seemed 
to be, it was effectual, particularly with regard to those that were 
affected with exophthalmia. We thought that this change might 
also arrest the progress of cataract, or preserve from the attack of 
it; and we were not deceived in our expectation, for there is not, 
at the present moment, scarcely an instance of exophthalmia or 
cataract. 
Gohier^s Memoirs and Observations, vol. ii, p. 196. 
Poisoning by Verdigris. 
One of the Limoge journals states, that twelve horses that 
drank from the fountain of St. Pierre on the night of the 28th 
of August 1836, died in the course of that night, or on the fol¬ 
lowing day. The water had been empoisoned with verdigris by 
means of some copper vessels that had been washed in it, and 
forgotten, and left in it, until they had become oxydized. 
Journ. des Haras. 
The Extraordinary Speed and Endurance of the 
Camel. 
In the northern districts of Africa the settlements of the inha¬ 
bitants are separated by immense solitudes; but a wise and bene¬ 
volent Providence has placed there not only the Arab horse, 
which traverses with such velocity the torrid sands, but the camel, 
and especially the breed of it which is recognized by the name 
of Hersis, and which, perhaps, exclusively merits the name of 
“ the ship of the desert.” Nothing can equal the rapidity of his 
march, and one scarcely dares to repeat the stories which are told. 
The following relations, however, may be depended upon:—A 
hersi travelled from Senegal to Mogador in seven days. He tra¬ 
versed fourteen degrees of latitude, and, allowing for the detours 
of the way, the distance could not have been less than 525 leagues 
(a French league is 2^ miles), or 75 leagues a day. A moor, 
living on the borders of the desert, mounted his hersi one day 
and rode to Algiers, a distance of seventy leagues, and returned 
on the same night with some oranges, which one of his wives 
longed for. 
Moniteur Industriel. 
TO CORRESPONDENTS. 
We cordially thank Mr. W— for his communication ; but as the matter 
related not to the students generally of that school, but to the practical 
pupils of the last session, we thought it not advisable to give it publicity. 
Another and a better time will come. 
