Steam Engines in Cornwall,—Deaths. 75 
high with one bushel of coals, by the engines annexed, during 
‘these months. 
Work performed in May. 
Pounds of water. 
, Load per square 
inch in cylinder. 
- 25 common engines averaged 23,107,534 various. 
Woolt’s at Wheal Vor _.. not reported. Hehe’ 
Ditto Wh. Abraham .. 52,349,333 15-1 lib. 
Ditto ditto.) 3% -. 24,713,750 3°7 
Ditto Wh. Unity -. 34,928,030 13-1 
Dalcouth engine .. .. 44,205,739 11:2 
United mines j »- 36,874,193 16:2 
Wheal Chance oe -. 39,589,154 13-0 
Work performed in June. 
23 common engines averaged 22,206,996 various. 
Woolf’s at Wheal Vor 38,438,168 15°4 
Ditto Wh. Abraham ., 40,135,339 15-2 
Ditto ditto .. : 22,577,264 3:7 
Ditto Wh. Unity -- 30,740,843 131 
Dalcouth engine .. .. 41,484,504 11:2 
United mines oe e-. 34,298,994 VR 
Wheal Chance os .- 82,615,890 13-0 
DEATHS. 
It is with regret we have to announce the premature death of 
our much-valued correspondent George John Singer, esq. author 
of “ Elements of Electro-Chemistry.” His death was occasioned 
by pulmonary consumption, and took place on the 28th of June, 
in his 31st year. This distinguished philosopher began to teach 
the sciences at an age when other men are commencing their 
studies. His patient and investigating spirit, combined with great 
mechanical skill and unwearied industry, enabled him to make 
some very important improvements in the instruments used in 
electricity, and that science owes to him some valuable discoveries. 
His work, which has received the honours of a double translation 
into French, will remain a lasting monument of his talent—it 
may safely be pronounced the best manual of the subject it em- 
braces.— In private life Mr.Singer’s virtues endeared him to 
all who had the honour of his acquaintance, among whom were 
some of the most able philosophers of the age. This circle 
might have been greatly enlarged, but that he loved retirement 
and privacy, more than those who delighted in his society 
could have wished. In him science has lost an arduous and 
highly-gifted votary, the community a most valuable member, 
his friends an inestimable treasure. 
M. Werner, the celebrated mineralogist, died at Dresden on the 
30th of June, at the age of 67. He has bequeathed his excellent 
collection 
