58 Salmon Culture in Australia. 
a hundred people on board, while the Volunteer had merely 
her own officer and one or two gentlemen, to see that she 
did her very best in the race. Yet the Wawtzlus, though 
using less steam, had no difficulty in beating her, of which 
fact every person on board was satisfied, and the proof 
seemed complete that the hydraulic, with same power, will 
beat the paddle, leaving the many other advantages pecu- 
liar to the former to the good. 
_ With this practical proof of the utility of this invention, 
we may fairly prognosticate a great and glorious future for 
the hydraulic propeller, and a few scientific gentlemen can 
obtain permission to inspect the vessel by applying to the 
inventor. Additional trials will be sufficient to place this 
project among the great successes of the age we live in. 
The Waterwitch, launched in June, will not be completed 
and ready for trial until the beginning of October. 
F. J. D. 
SALMON CULTURE IN AUSTRALIA. 
CCOUNTS recently received from Hobart town and 
other places in the colonies of Australia, where the 
propagation of salmon is being carried on, assure us of the 
very great success which has attended the efforts of Messrs. 
Youl, Wilson, Ramsbottom and other Australian gentlemen, 
now in England to naturalize salmon into Australia. The 
following letter from Mr. W. Ramsbottom, superintendent 
- of the salmon breeding establishment at New Norfolk, 
says :— 
“On my opening some of the first ova boxes at Melbourne, — 
I had very grave thoughts about our chances of success, as 
I was sure upwards of 70 per cent. were dead, and I had 
then before me our voyage to Hobart town, with the dangers 
connected with reshipping—a work to be repeated three 
times—and then the boxes had to be carried for four miles 
on men’s shoulders to the ponds. However, when I opened 
one or two boxes of ova which were taken from the bottom 
of the ice-house, I assure you words cannot express my 
feeling on seeing certainly upwards of 70 per cent of healthy 
ova. The difference was really astonishing between the 
two lots of ova, those ce on top of the ice and those 
at the bottom. | 
