Vol. 46. 



August 1815. 



No. 208. 



Published the. 'Last Day of efiery Month, gv||, 



[PRICE 2s. 6d.] '^:;^| 



::a 





.THE 



VPIIILOSOPH-ICAL MAGAZINE 

 AND JOURNAL: 



eOMPREaENDlKa 



THE VARIOUS SRANCHES' OF SCIENCE, 



THE LIBERAL AND FINE ARTS, 



GEOLOGY, 



AGRICUITTURE, 



MANUFACXUItES AND COMMERCE. 



NUMBER CCVm. 

 For AUGUST 1825. 



1^ 



7>>j If .COl^^AINING I'HE fOLLOWlNG ENGRAVING CY POR,TER: 



^''; >' ^ry- A Plate to srtii£tV4!t<2 ^^^''- WooT.v's Iniprovement on the,3teani-E:igine, 

 f:\ , ^"^ },y which tiw liosiiihllity of Steam escaping p?ist tlic side of |lie Vh- 



■' '■'\ ion is cflfiichiaiiy iireveHted. • 



t:^v-| ____;-J.j.^- ^ . :._ , 



BY ALEXANDER TILLOCH, 



5!,H.£.A.F.S.A. £nJN. A\D PEii;a,&C. 



g,B 



i;Si>1 LONDON: ^:^. 



N';>' * PRINTED BY UICHAIU) ANIV ARTKUS. TAYXOK, SHOE LANE: '^^K 



/^'•"^>|;Ai!dsold by Ca0»l<; and DavieJ?} Lo.'iOMAN, Hurst, Rees, |i<..N^ 

 '[> Orme, & BROWNJ.Mu!i«.AV; HiGttXEy; SiJERvvooiiand Co.; |-v'&^ 

 \ I-lAnDiKO; •TTSDnKr/ooOs; JLoh(ion : Cdksi-able and Co.y^j^S 

 j Edmbuigh : BfiAsii and REir>, and Di Nivbn, Glapgnw : (:^M«i 

 and Gilbert and HoDGps, Di-.blin. _; ~- ,. v^i i{l!^ 



