14 
and having married a French lady. It was this intimate 
connection with France which gave him his French accent, 
which he could never entirely get rid of. He was however 
entirely English by birth. His habits contracted there may 
have led also to that excessive activity which seems to have 
told at last in a very unexpected manner upon his health, as 
he seemed powerful and of sound constitution. The fatigues 
he underwent during a visit to the Vienna Exhibition, and 
the climate there, must, however, be blamed, so far as we 
can hear, for the evils both direct and indirect which pro- 
duced a fatal result. 
Dr. Calvert had, shortly before his death, completed a 
revised edition of his lectures on some departments of 
manufacturing chemistry. His practical experience, com- 
bined with his profound knowledge of the theory of the 
subject, must render such a work of great value, and keep 
his name for a long time fresh among chemists. 
His later investigations, especially those connected with 
germs or the beginnings of life, were of a purely scientific 
character. 
He may be said in every sense to have been a successful 
man until that illness which destroyed a life which pro- 
mised to be very long. He had many friends, and amidst 
an excessive amount of work he was able to be obliging and 
kind to a large number. 
He was a Fellow of the Royal and the Chemical Societies 
and of several foreign Academies, and in the scientific circles 
of London and Paris he was as well known as in his adopted 
city, Manchester, where many lament him as a man who 
knew little of him as a chemist. 
“On the Bursting of Trees and Objects struck by Light- 
ning,” by Professor Osborne Reynolds, M.A. 
The results of the experimeuts referred to in this Paper 
were exhibited to the meeting. 
