S4^ 



liittrory md Philosbphkat tnieUigimeit, 



[Not.n 



tTie resfjectivc officers, the treatment and 

 condition of tbe convicts, the amount of 

 their earnings, and the cxpences of suclj 

 Penitentiary. 



CaJ). LXIV. To repeal several Acts 

 delating to the Militia of Great Britain, 

 dnd to aviend ether Acts relating thereto. 

 —.Tune 22. 



Cap. LXV. To explain and amend 



the Acti for gfantifig JDutigf on lh9 

 Profits arising from Propei-ty, Prijfes-* 

 sioHs, Tradei, and Offices, so far as ex-*' 

 tend to the due Assessment aud Cellection^ 

 (^' the Duties for past Years r for con'. 

 firming- certain Abhtente^iti alrtiuhj rtmde 

 of the said Duties, and exempting tJol- 

 lectois' Bimdsfrom ChtjStamp Dufitt.-" 

 June 22. 



VARIETIES, LITERARY AND PHILOSOPHICAL, 



Iitcluding Notices of Works in Hand, Domestic and Foreippt. 



THlE Royal Geological Society of 

 Cornwall has published a second 

 Annual Report. IVom wliixjii it appears 

 that considerable progress has been 

 made in the construction of a Geological 

 Map of that County. The interesting 

 liun<lrcds of l^onvvith and Kinier are 

 ftlrcady finished, the rocks which con- 

 Alitutc their surface are disting;uislied 

 by appropriate colours, and their suc- 

 cessions, relative positions, and various 

 junctions and transitions into each 

 other, are traced and delineated nllli an 

 ftccuracy and detail which cannot fail 

 to render it a most acceptahlc present 

 from geoloj^y to agriculture and the 

 arts. The comohiion of lliis S!,rcal de- 

 sidn-aiwrn may be conlideiilly ar.f ieipatcd 

 befoi-e the nest ainnial wiectinp. 'Hie 

 geological dcpavtnient of their Mnseufti 

 lias been enriched by a valuable aeoes- 

 «ion ofiUnstrativcsiiecimcns, which have 

 filled "P *lic several chasms in the scries, 

 and \cndered it susceptible of a more 

 perfect arrangetnenf, which has been 

 elfected according to the gener.tl order 

 of superposition which the difi'crcut 

 rock formaUfHis observe iuiiaturfi; fuch 

 an arrangen.ient has been decjned pre- 

 ferable to that which tijrows the speci- 

 jnens inlo instilated divisions, aeeordiug' 

 4io the different dish-icts fi>om whicli they 

 tvcre derived, as 1)oh)g less likely to 

 destroy the unify of tiic concction. npon 

 vhich its value as a point of reference 

 depends; the latter arrangement is also 

 rendered tlie lesi necessary, as the 'Ge- 

 ological ]\Ia|) records the habitat oi' cvc«i:y 

 ♦peeinien ))y a correspondhig number, 

 and furnisiics a key by wiiieh the pro- 

 ducts of aliy particular district may be 

 as easily selected as if they were de- 

 posited' in regular succession.-^ .Welftn- 

 dlioly acci<le'fits slill oeeasioDally hap- 

 pen from the use of the iron tainpinjg 

 bai-s, thougli a simple atsd «iirt])jcctioti- 

 able method has been devised for pre- 

 ▼cnting them, lire testimony of Mr. 

 CiCENHALi.t>, who k*yi the suporinteii' 



dance of many considerable mines, ajv 

 pears so satisfactory, that it is deemed 

 a duty to give it every possible pub- 

 licity. Within tiielast month four fatat 

 accidents iiave occurred at the United 

 Mines, as well as several others in that 

 district. Mr. Chenlmlls, in » letter to 

 Dr. Paris, sends an account of the suc- 

 cess of the new Alloyed Tamping Bar. 

 After re|)eate(! experiments, in whicU 

 Sir Rose I'rice and Dr. Paris took an- 

 active part, the proper proportions of tin 

 and copper were hit upon, a cap com- 

 posed of which, is soldered upon the 

 bottom of the common iron bar ; tliiu- 

 con.structed, it is quite free from cvcrj 

 objection, and has now, for twelva 

 Rronths past, been constantly used by 

 four luradrcd mVaei-s, to Mr. Chenhall* 

 knowledge, without an accident of-any 

 d«seri|>liou having happened. The com- 

 mon bar costs a\iout thirteeii-peaice, and 

 the safety bar will cost about twenlj- 

 pence, which will last a man, in con- 

 slant use, for eighteen months or more, 

 and can tlien be re-capped for a few 

 pence. The following p;4)crs have bceu 

 read within the year: — - 



1, On the Geological structure of Coru* 

 wall, with a view to trace i^s in(l(iei>ee 

 npoii, and conueeticM) with the Ifertil-ilv €t' 

 its Soils, accompanied vritli a series of 

 illustrative s|>eciaiens^ by John Ajrton 

 PariSi M. D. F. L.S. &.C. 



a. Hi.storical Aci-onnt of Copper and, 

 Corpper Miuos ; b^ Joseph Carnc, csrj. 



S. On iH new arrantjeinent of the Oi)« 

 jeet.s of Geoloj;v4 by John Aytton Paris; 

 M. D. F. L. S. Ac. 



4. 0« FJvan Courses, accompanied with 

 a seiics of gpeciimens; by Joseph Carnc, esq. 



5. Observations on a remarkable chani;e 

 which Tin undergoes, nnder peculiar cir- 

 cinnTtancess aad on its partia) eotivei'sien 

 into a Mvuiate of "Tin j by the Rev. 'SViU 

 liam Gregor. 



0. An Account of llie .prod>»ice of th« 

 Copper Mines in Cornwall, in ore, coipper, 

 and uioney, fort-he Year ending J use vJOth, 

 lgl6 ; by Joseph Garne, esq. 



7. Att AccouBt of tbe quaotity of Tin 

 pcoducttd 



