To face p. 168.] 



E...,-., d, Cdlii 



Natural Scale: 1:42240 



Quart. Journ. Geol. Soc. Vol. LXII, PL VII. 



The ValTicinolie-. ni'.i outside 'h" map,below it; & the Val Canada 



Map of the Pioba Lakes. 



[A triangular patrh of raucliwacke should have been indicated in the extreme left-liand corner of the map, between Pian alto and Fongio. 

 the occurrence of gypsum should have been indicated just above the numerals of altitude 2013. north of the Murinnscio stream.] 



