Catalogue of Specimens. 663 



609 Quartzose Conglomerate (bowlder.) cement mica slate. Windsor. 



610 do 'do do Adams. 



611 Quartz with disseminated iron pyrites, Windsor. 



612 do ferruginous, bowlder, Worthington. 



613 do passing into yellow jasper, Chesterfield. 



Mica Slate. 



