846 THE ZOOLOGIST. 
water below. ‘These carriers, while extremely suitable for con- 
veying yearlings, will not do for fry, which require water of a 
higher temperature, and these are all sent out in glass vessels 
specially made for the purpose, resembling carboys. The angle 
of the water with the glass has been duly considered, and when 
properly filled, a rotary motion is caused during transit, which is 
as a running stream to the little fish. Orders are less frequently 
received for larger fish, and only recently a consignment of fish 
averaging 2 lbs. each was despatched to a gentleman who wished 
to provide immediate sport. A large business is done in yearlings, 
which are made a special feature at the Solway Fishery. 
The fish are reared in a series of ponds, many of them like 
broad trenches, others of larger dimensions and square in shape. 
The number permits of a perfect classification both as to species 
and age. The largest pond area at present immediately adjoins 
the hatchery and Mr. Armistead’s residence; but a range of 
small ponds has been constructed on the crest of the rising 
ground at the further end of the field. It is intended to extend 
them along the whole face of the slope, and also to erect a 
second hatching-house in their vicinity. To secure a proper 
water-supply for this series of ponds has involved no small labour 
and outlay. The Pow Burn was tapped half-a-mile distant, a 
rough caul being thrown across it to dam it back at the place, 
and an aqueduct of that length has been constructed through 
the wood. Much of the cutting was through granite, and blasting 
had frequently to be resorted to. The work of pond construction 
has, however, been greatly facilitated by the retentive nature of 
the ground, which renders unnecessary the puddling or concreting 
of the bottom. 
Gratifying, and in a measure surprising, results have been 
obtained in the cultivation of fish; not only larger individual 
specimens being reared than are to be met with under more 
strictly natural conditions, but gradual and constant improvement 
in their produce, and consequently in the general standard of the 
breed, being secured by the selection of ova only from perfectly 
healthy and well-grown fish. The Loch Leven Trout, the 
American Trout, the Windermere Char, and the Common Trout 
have received special attention at the hands of Mr. Armistead, 
and the most satisfactory results have attended his experi- 
ments with and careful rearing of them. A draught of the net in 
