The Apparatus consists of a tin case, separated into two parts by an
open work partition. In one of these the fish are placed, and in the
other is fixed a mechanical contrivance for keeping up a considerable
supply of air in the water.
In November, 1853, 33 Greylings were sent from the Wye at Rowley to the
Clyde at Abington, a distance of about 250 miles with the loss of only
two fish.
The Apparatus is composed of a zinc cylinder, about three feet high and
two feet in diameter, with a strong iron handle running round the
middle; to the top, a small force pump is attached, and by this fresh
air is forced through a star shaped distributor at the bottom of the
cylinder; a ring to bring the fish up for inspection, and a loose
concave rim to prevent splashing over, complete it. A drawing with
particulars was deposited with the Society of Arts, in London.