Longitudinal Section of Great Westernj Railway TyiNiiMiLi 



LO/Ve TUA//VEL //SO Y/l H OS M l£A/SrH 



HORIZONTAL SCALE 400 FEET TO THE INCH 



flkter J/J/if "I ffina/ '/iimir/ 



B/iru/r 340 r£cr jiBoy£ {m/h-f r/arj sc/i levcl- jthe onpn/iA/CE o^ru/nj 



G. W. Railway Tunnel. 



CROSS SECTION. 



SCALE 8 FEET TO THE INCH. 



