282 'Proceedinga. 



for your next year's trip,— and tlie other to be shipped to your address in 

 Australia, vvlicre it is probable you will receive it long before the fry bej^ins 

 to chip the shell. 



" All that will be necessary is to direct your friend to keep the basket under 

 water in some fresli stream till Ihe ship is ready to sail, wlien one can be 

 transferred to the ship tank, and the other remain (in a pure running stream 

 if possible) till the fry be;iin to emerge in IMarch, when a pool can be formed 

 surrounded with a fine net to present their straying and being destroyed. 

 Let me hear from yoa as to this before you start — Yours faithfully, 



"J. Mackenzie, RI.D. 



" Captain Chalmers." 



Dr. Officer expressed doubts whether the temperature of the rivers 

 of Tasmania is sufficiently low in the winter for salmon to thrive in. 



Mr. James Burnett remarked, that it has been considered essential 

 to the successful introduction of the fertilised roe, that it should be 

 placed during the passage out in a current of fresh water. 



Dr. Butler cited experiments of Professor Owen to show that the 

 roe and milt, taken at the proper season, mixed, and then deposited 

 together in a tub of standing water and kept there, become hatched 

 about the usual time and yield fry in abundance, and that the intro- 

 duction of the fish may prove much easier than anticipated. 



Dr. Officer thought we might yet, perchance, find it most con- 

 venient to procure the salmon from California. 



The Secretary read a letter from J. E. Bicheno, Esq., F.E.S.,&c., 

 on a specimen of saw-fish, PHstis Cirralus. 



Mr. D.A.C.G. Mitchell gave a short but clear and satisfactory 

 exposition of a new mode of setting up the rigging of vessels, 

 illustrated by a neat model which he placed on the table. The con- 

 trivance has a light and elegant appearance, and is considered in an 

 especial manner applicable to merchant vessels, as it is calculated to 

 effect a material saving in manual labour. 



After discussions on various matters before the meeting — in which 

 Mr. James Burnett, Drs. Agnew and Butler, Lieut. Smith, Major 

 Last, and others joined, — it was moved by Joseph Hone, Esq., 

 seconded by Dr. Turnbull, and carried, " That the thanks of the 

 Society be given to the persons who have made presentations and 

 furnished papers." 



The meeting broke up a little before ten o'clock. 



