i88 3 J 
Analyses of Books . 
621 
to Australia in 1839, considering that his invention was com- 
pleted, secured, and made known, and that nothing remained 
but negotiations which might be left to agents. The agents, 
however, did not push the matter, and so Davy’s patent fell into 
the background. It is interesting to add that the inventor is 
still living in Australia, honoured and prosperous. For many 
years he was assayer to the Mint at Melbourne, and for the last 
quarter of a century he has carried on, in partnership with one of 
his sons, an extensive medical pradlice. But until the recent 
discovery of his MSS. (of the existence of which the family 
were not aware) by his nephew, Dr. H. Davy, of Exeter, and 
their examination by Mr. J. J. Fahie, his claims as the in- 
ventor of an eledtric telegraph had lapsed into oblivion. His 
models and apparatus had been sent down to Ottery St. Mary in 
1840, and stowed in an outhouse. By occasion of a removal, 
about three years ago, they were sold as old metal. Mr. Fahie 
could only find half-a-dozen old Daniells, and a few pieces of 
copper-wire. His MSS., we are happy to learn, will shortly be 
committed to the safe keeping of the Society of Telegraphic 
Engineers. 
The Prophylactic Power of Copper in Epidemic Cholera. By 
Arthur de N. Walker, M.D. London : Epps. 
The recent revelations of M. Bailly, showing that workers in 
copper do not enjoy any uniform immunity in case of cholera, 
render it unnecessary for us to discuss this pamphlet. 
