On a Lamp for lighting Coal-mines. 61 



I think to rest satisfied, with the suffrages to which he alkides, 

 than they would, in tliose of the wharf-keepers, constituting the 

 London *' Coal-trade." Unless those who so clamorously ad- 

 vocate Safety- lamps, can show, that thev ore wanted and have 

 been practically received, in other coal di-jtricts (I don't mean, 

 of course, the Owners of particular works ordering such lamps 

 to be provided and used, merely because other Owiiers may have 

 done so), besides the vicinity of Newcastle; the public will sooner 

 or later, I think, see cause for, and will inqui'c, into the peculiar 

 circumstances * affecting sucli Newcastle works : but having far 

 exceeded the limits I intended, 1 will conclude, and remain 



Yours, &:c. 

 37, Ilowland-street, Fitzroy-square, Jan. 7, 18.7. JoHN FarEY, Sen. 



XIII. On the Lamp for lighting Coal-mines, proposed ly 

 J. Murray, M.D. F.R.S. E. 



To Mr. Tilloch. 



Sir, — In your Journal for December I observe a letter by 

 Mr. J. Murrav, at the close of which is a reference to the lamp 

 which I have proposed for coal-mines, which seems to call for 

 some notice from me. From what he states of a parade being 

 unnecessarily made with regard to this lamp, and of its being 

 brought forward as a rival to another, he seems not to be aware 

 that the paper describing it, which appeared lately in Dr. Thom- 

 son's Journal, is merely the original one read before the Royal 

 Societv of Edinburgh, so far back as November 1815, and which 

 has not appeared earlier, as the volume of the Transactions con- 

 taining it has only been lately published ; and I thought it un- 

 necessary to deviate from the established practice, and publish 

 it in any unusual mode. Having announced at first the general 

 plan, and having sent a copy of the original paper to Newcastle, 

 as soon as possil)le after it was read, I conceived myself to have 

 done all that for the sake of humanity I was called on to do ; 

 and I was not disposed to excite any party in its support, to make 



'^ In p. 31 of the Moiiihly Magazine, vol. xli. I have hinted, that tl)e 

 inhabitants of London and the M)Uth-ea!>t parts of Kni;lanH, are deeply in- 

 terested in Mich in<]ni(y; and 1 would here add, particuhirly, as to whethtr 

 the inordinate extension of subterranean works from some drawing: Pits, 

 within fifteen years past, has not been occasioned, in part at least, by aii 

 absurd act of parliament of about that standinc, which gave to a few par- 

 ticolar Fits bi) niimc, on the certificate of an Otllcer, that coals sent to Lon- 

 don, &c. were rlriiwn out ofsiivfi pit's /rt/jTwhercin varidtif scams of different 

 values existed below), the privilege of being mixed and sold for the best 

 price of the day ! ! ; and others for the second best, tS:c. — how far lias tins 

 lounly for extending the workings underground operated? 



any 



