Sir Humphry Davy’s Safe-Lamp. 313 
and Blyth, request the honour of paying their respects te Sir 
H. Davy, and of presenting to him a letter containing ais egy 
pression of the thanks of the coal-owners,” 
The following is the letter which the said deputation deliver- 
ed into the hand of Sir Humphry : 
** To Sir Humphry Davy, LL.D. ec. 
“* Newcastle, March 25, 1816. 
“¢ Sir,—As chairman of the general meeting of proprietors of 
coal-mines upon the rivers Tyne and Wear, held at the Assem- 
bly Rooms at Newcastle on the 18th inst., I was requested to 
express to you their united thanks and approbation for the 
great and important discovery of your safety-lamp for exploring 
mines charged with inflammable gas, which they think ad- 
mirably calculated to obviate those dreadful calamities, and the 
lamentable destruction of human lives, which of late have so fre= 
quently occurred in the mines of this country. 
** They are most powerfully impressed with admiration and _ 
gratitude toward the splendid talents and brilliant acquirements 
that have achieved so momentous and important a discovery, 
unparalleled in the history of mining, and not surpassed by any 
discovery of the present day; and they hope that whilst the 
tribute of applause and glory is showered down upon those whe 
invent the weapons of destruction, this great and unrivaled 
discovery for preserving the lives of our fellow-creatures will he 
rewarded by some mark of national distinction and honour. 
fe famy sit; . 
*€ Your most obedient humble servant, 
** GzorGE Wa.pir, Chairman.” 
As, on a question of the kind before us, no testimouy can be 
of equal weight with that of the people most directly interesteel 
in the prosperity and safety of the mines,—in addition to the 
foregoing, and to what we have given in another page of ous 
present number respecting the coal-mines at Whitehaven, we 
subjoin an 
Extract of a Letier from John Peile, Esq. on the Use of the 
Wire Gauze Safe-Lamp. 
* Colliery-Ottice, Wiitehaven, Feb. 2h 1816. 
“It gives us great pleasure to add our confirmation on the 
safety of Sir H, Davy’s safe-lamp, end to express our confidence 
in the security of this simple yet curious-invented instrument. 
We this day put its efficacy to the test in the aos: danyerous 
places we have in William pit, and in each experiiuent the ree 
sult corresponded with the description published. Our first ex- 
perimen: was in Russia stem-drift, with some strong blowers of 
fire- 
