30 DR. J. MURIE ON IRREGULARITY [Jan. 13, 
than their brethren, had been dragged out. The fishermen, well 
knowing that these were not indigenous fish, made a shrewd guess 
at the nature of their capture, and, on the 22nd of October, brought 
them to the Salmon Commissioners, who at once pronounced them 
veritable Smolts*. 
Before concluding, it may be well to state that the whole of the 
expenses hitherto incurred in the conduct of the experiment be- 
tween January 1860 and October 1869 amount to £8835 12s. 2d. 
Of this sum, £6990 11s. 2d. was paid by the Tasmanian Government, 
£995 1s. by the Victorian Government, £200 by the Acclimatiza- 
tion Society of Victoria, £300 by the Provincial Government of 
Canterbury, New Zealand, £200 by the Provincial Government of 
Southland, New Zealand, and £150 by the Provincial Government 
of Otago, New Zealand. Credit must also be given to the Victorian 
Government for the large amount which must have been expended 
in freight had not H.M.C.S.S. ‘ Victoria’ been twice so lib~ 
placed at the disposal of the Tasmanian Salmon Commissioners. 
4, Additional Memoranda as to Irregularity in the Growth 
of Salmon. By James Muniz, M.D., F.L.S., Prosector 
to the Society. 
(Plate II.) 
PRELIMINARY NOTICE. 
When I communicated to the Society some observations in con- 
nexion with the supposed arrest of development of the Salmon (see 
P. Z.S. 1868, p. 247), I purposely held back memoranda in support 
of the view therein enunciated. Having, as it were, registered the 
data occurring within my own ken, my further intention was to in- 
stitute a series of experiments, with the object of crucially testing 
the truth or fallacy of the doctrine. 
Unforeseen circumstances happened, depriving me of that auxi- 
liary assistance necessary for the fulfilment of the requisite conditions. 
But it is probable that other parties may be favourably placed to try 
the issue of experiments, to set the matter at rest; hence I make 
note of what seems a feasible plan. 
I propose that some one resident close to a Salmon river should 
obtain a quantity of impregnated and undoubted Salmo-salar ova— 
some of this to be forwarded, and deposited in the tanks at the Gar- 
dens, where, after hatching, careful notes of the growth and changes 
&c. are to be made; due precaution also to be taken that batches of 
the young fish shall be placed under varied circumstances, 7. e. as 
respects the size of the reservoir, food, &c.; on the other hand, the 
* [One of these “Smolts” was sent home to be exhibited when the present 
paper was read, but upon being submitted to Dr. Giinther’s examination was 
dekeannes by him to be a dwarfed example of Salmo trutta, and not a S. salar. 
J 

