XVIII.—On the Attempt recently made to introduce 
Salmon and Trout from England into Tasmania, by 
shipment of Spawn. By J. L. Burnetr, Lsg. [Read 
14th July, 1852.] 
At the instance of His Excellency Sir W. Denison, an 
attempt has recently been made to introduce Salmon and 
Trout into Van Diemen’s Land, which, although not suc- 
cessful, has established the fact, (before doubted), that by 
means of spawn these fish can be brought from Europe to 
this Colony. 
I will describe the arrangements made for this first 
experiment, and then endeavour to point out wherein they 
have been, in my opinion, defective. 
About 50,000 ova of Salmon and Trout were placed in a 
large oval tub or vessel, with a false bottom, 4 feet 6 inches 
by 3 feet 4 inches, 1 foot 8 inches deep, double-sided, made 
of wood, cased in lead, and capable of containing 60 gallons 
of water, besides the requisite quantity of gravel. 
On the 3lst of January, 1852, the tub was shipped on 
board the Columbus, in London, and slung just under and 
on one side of the fore hatchway ; with directions that every 
six hours a fresh supply of six gallons of water should be 
added, by means of a funnel inserted in a tube entering 
below the false bottom—the old or original quantity, (or 
the greater portion of it), being drawn off by a stop-cock, 
placed for that purpose in the upper part of the tub; and 
that the six gallons of water were to be supplied six times 
a day as the vessel approached the Equator, making 86 
gallons in the twenty-four hours, and to be again reduced 
