400 THE ZOOLOGIST. 
the author witnessed a singular attack by Wolves on a herd of 
Antelopes, which he thus describes :— 
“We arrived at the crest of a hill overlooking a wide vale while it was 
yet illuminated by the full semi-tropical moon, by whose light we had been 
shooting, and, casting a glance over it, observed a pack of Grey Wolves 
surrounding a herd of feeding Antelopes. We paused to watch their 
proceedings. About fifty wolves were spread out in a great semicircle, 
crawling and sneaking along, their grey coats hardly visible in the silvery 
light. As the horns of the semicircle commenced to close round the herd 
of Antelopes, some among them got the wind of the Wolves, and giving the 
alarm, the whole herd immediately closed up and stood looking about them, 
hesitating which way to fly. Simultaneously the Wolves rushed in, and 
the Antelopes scattered in all directions, the bulk of them breaking through 
the line of their assailants, but some half-dozen being pulled down, torn to 
pieces, and devoured instantly. Then the Wolves packed, and started in a 
long swinging gallop on the tracks of the flying herd, giving tongue as they 
ran, like a pack of hounds.” : 
Major Campion’s remarks ou the Beaver, its habits, and the 
mode of trapping it (pp. 147—165) are very interesting, but too 
long to be quoted here. The height of the “ dam,” he says, varies 
with the rapidity of the streams they are built across, and where 
the current is fast the fall of the water-course is great; and then 
they require to be high, otherwise the water would not be backed 
sufficiently for it to make a pool of adequate size. 
“In mountain streams about eight feet is their average height. For 
instance, suppose you stood below one regarding it, then the dam would 
stretch across in your front, from bank to bank, eight feet high, and present 
a perpendicular face of branches, with their butt-ends towards you; these 
ends varying in size from half an inch to two inches in diameter. This is 
undoubtedly the right way for the sticks to lie, as is well known by all 
engineers who have had occasion to make ‘ brush-dams’; and the reason is 
obvious, for as the smaller twigs and forks.on each branch, when laid in 
such a manner, face the stream, they catch all sediment coming down with 
the water, which, lodging, helps to make and keep the ‘ dam’ water-tight.” 
With this extract, we must conclude our notice of Major 
Campion’s book. From the passages above-quoted, the reader 
will be able to judge not only of the author’s style, but also of 
the sort of information which he has to impart on the Zoology 
of the country explored by him. 
