'vans. Boy. Soc. Edinburgh. Vol. XL. 



r T. J. Jehu on "A Bathy metrical and Geological Study of the Lakes of Snowdonia and Eastern Carnarvonshire." — Plate I. 



Grlaslyn, with the jieak of Snowdoi 



ermietimt of Tha l'hutochrom Vu Ltd.] 



Gwynant, looking down the valley. 



