n\6.] 



T beg it may be understood, that my 

 letter, No. V. at page 130 of Mr. 

 Holmes' book on Coal Alines, was vtpri- 

 tate commiiiiicatiou, and never intended 

 to meet the publie eje; bnt by a mistake 

 on tiie part of the piiblisber, it was in- 

 serted uisknowii to fne, for which I am 

 truly sorry, as I never intended to wound 

 the feelings of any individnal. ^Mr. 

 Holmes of his own aeeord lias expressed 

 his determination to leave this letter 

 out, in the next edition of his work. 



Upon tiie 6th of thiii month, I had tlie 

 honour to receive spontaneously and un- 

 animously the thanks of tiie Society for 

 preventing Aceideuts in Coal .Mines, for 

 n>y general services. 



From the increasing confidence with 

 ■which my steam safety lamps arc re- 

 ceived by those gentlfnieu who are con- 

 eerned in the management of coal mines, 

 I have reason to expect, that in a short 

 time they will be universally employed. 



To the Editor of the Moyithlij Magazine. 



SfR, 



Wlv, whose names are nndersigned, 

 being persons who composed 

 tlie meeting held at the Assembly 

 Kooms, Ncvi castle, on the 9th of Sep- 

 tember, 1815, observing that Air. l?y«n 

 has aflixcd the resolution of that nuel- 

 ing, with our signatures, to his '• fiCtter 

 to the late Secretary of the Society of 

 Arts," on " his method of ventilating 

 eoal- mines," feel ourselves called upon 

 to decJure, that no part of that method 

 Was tlien explained to us, but simply an 

 application of the inverted siphon to the 

 clearing away of collections of earlm- 

 retted hydrogen gas. which may have 

 areunmlatcd in cavities in the higher 

 levels of a coal-mine, which he illus- 

 trated by the common experiment of a 

 bended glass tube, iuunersed in two 

 fluids of dMfcrent densities. 



In cons" qiience, however, of this ge- 

 neral explanation of Afr. 1? van's jirinci- 

 ]ile, the particular application ol' nliich, 

 at the same tinu", he expressly declined 

 eommimieatSng, we thought it right to 

 give onr testimony of general iip[)rolja- 

 tion of it, "as consistent with tli«r prin- 

 ciples of piiilos<jpiiy ; and, in conse- 

 nucnce of his astiinain es of its sneicssfid 

 appiicatio!) in ceitain coal-mines in 

 Slallordshire, reeonunended the " pro- 

 priety of its ado{ition to be taken into 

 ronsideratiim by persons interested in 

 the coal-mines." 



On the merit or demerit of tiie plan 

 n';\v |>ointcU out by ."Mr. Hyan, we do 



Mhs IJutton's Tour in North WaUs. 323 



not feel ourselves called to give an opi- 

 nion : our only object is to state, that no 

 communication of it was made to u^i at 

 the meeting above alluded to. 



R. W. Grey. 



T. H. BiGGE. 



Wm. Ti;rkeh. 

 N. J. Winch. 

 John Caru. 



Newcastle ; Oct. 5. 



John Hodgson. 

 CiinisT. Uenson. 

 \Vm. Clarke. 

 VVm. Ar.MSTRONO, 

 K. W. Uranuung, 



For the Monthly Magazine. 

 LF.TTtKS urittin duriitg a second toiiix 

 in NORTH walks; hi/ Miss mutton, 



O^BENNETT'8-HILL, near lURMLNtUIAM. 



LETTiAl XII. 



Chester; Oct. 7, 1707. 

 My dear Brother, 



Wt left Caernarvon last Wed- 

 nesday; and left it with tli« 

 pleasing conviction, that the climate is 

 not always so inhospitable as we found 

 it at first. Settled fair weather is sot* 

 tied there also, but stormy weather falls 

 there with tenfold vengeance. Alnlti- 

 tudcs of people go to sec Snowdon, but 

 it is the lot only of a few t(j say that they 

 have seen it: many, in climbing it, hava 

 been overtaken by torrents of rain and 

 gusts of wind, that have obliged thcin to 

 creep on their hands and knees, or to 

 cling to the ro<'ks or the guide, to pre- 

 vent their being swept down the pred- 

 jiiees. I believe that the reasons of th« 

 imperfect accounts gi\en of Snowdon 

 are, fust, that Jew can sec it when they 

 get there; and, secondly, that those few 

 think of nothing but how they shall get 

 down. 



AN c relumed to Conwy, v\here the 

 best hari)er I e\(r heard made mo afraid 

 to »ise my teeth at dinner, lest they 

 shouhl interrupt the ollice of my ears. 



AVc crossed the river, and rode up a 

 narrow marshy vale: formerly, a grent 

 promontory, called i'enmaen lUuls, was 

 to be crossed, at the end of this, on a 

 road more formidable and dangerous 

 than I'enmaen Alawr itself. This isiio\v 

 avoided, by an easy road cut among tha 

 hills, on the right. Our way Irom thence 

 lay near the shore. 



At ( ight miles from Conwy we ])asscd 

 through a \illage: I asked its name of a 

 man whom we met, and wo were not a 

 little suipiiscd to hear him aiiswcr, 

 •'libck-and-lilue." AVe concluded 

 that he was a \\ dsh wit, who had a 

 mind tw divert himself at our expenee; 

 and we rode on. A>e repeated our<piCk- 

 tioii to the next man we met, who an- 

 swered, "Jilan<Kilas," and there re- 

 'X t 2 Diaiiie4» 



