As I know that you feel much interest in all matters relating to Sir H. Davy's Safety-lamp, I trust you will excuse the liberty I take in informing you, that the Committee of the Tyne, approving highly of the suggestion, that some mark of acknowledgment and respect should be presented to Sir Humphry by the Coal-trade of this country, for the happy invention of his lamp, have convened a general meeting of Coal-owners, to be holden at my office in Newcastle, on Saturday next the 31st instant, at twelve o'clock, to take the subject into consideration. I should have sooner informed you of this proposed meeting, had I not been detained in Cumberland until yesterday; but I shall have the pleasure of transmitting to you a copy of its resolutions. I am sure that you will be gratified to learn that the lamps continue to go on as well as possible. We now have twelve dozen of them in daily use at this place. I have the pleasure to remain, with the greatest respect, Sir, Your most obedient humble Servant, JOHN BUDDLE. TO THE SAME. Newcastle, September 7, 1816. SIR, I now have the pleasure of sending you a copy of the Resolutions of the general meeting of Coal-owners on the 31st instant, and shall take the liberty of informing you of the future progress of this affair. Sir Humphry did me the honour yesterday to accompany me through the workings of a coal-pit at Wall's-End, when I had an opportunity of witnessing several interesting experiments on his Safety-lamp; and I have the satisfaction to add, that I believe he has now advanced it to the highest degree of perfection. I am, respectfully, Sir, Your humble Servant, JOHN BUDDLE. The satisfactory result of this visit Sir Humphry communicated to Mr. Lambton, now Lord Durham; and I shall take this opportunity to state, that for this as well as for several other letters I shall hereafter have occasion to introduce, I am indebted to that noble Lord, through the kind application of my friend Sir Cuthbert Sharp. TO J. G. LAMBTON, ESQ. M.P. Newcastle, September 9, 1816. MY DEAR SIR, Since I last had the pleasure of seeing you, I have examined the workings in the Wall's-End collieries by the lamps, and have tried them in various explosive mixtures. On Sunday, I went with Mr. Buddle to your _blower_, with the single lamps furnished with small tin reflectors. This simple modification rendered them perfectly safe, even in the furious _blow-pipe_, and at the same time increased their light. Nothing could be more satisfactory than all the trials. I have left a paper in the hands of the Rev. J. Hodgson, which will be printed in a day or two; and I have desired him to send you ten copies, or as many more as you may like to have.