8 6« Werner ian Natural Hislory Society, ' 



Jameson at the same time read before the society a series of 

 mineralogicil queries, — of which a copy is subjoined, — 

 drawn up with the view of directing the attention of mine- 

 ralogists to the particular objects pointed out by them. 



MIKERALOGICAL QUERIES. 



England, 



1. Docs the granite of Cornwall belong to the oldest or 

 the newest granite formation ; or do both formations occur 

 in that county ? 



2. Is the shorl rock of Cornwall disposed in an uncon- 

 formable and overlying position in regard to the older pri- 

 mitive rocks ? — If this be its position, on what rock or rocks 

 does it rest, and what are its other geoguostic relations ? 



3. Doeg tlie serpentine of Cornwall belong to the first or 

 second serpentine formation; and what are the imbedded and 

 venigenons fossils it contains ? 



4. What arc the characters of the different metalliferous 

 venigenous formations in Cornwall ^?— Are any of them iden- 

 tical with those described by Werner*, Mohsf^ Fricsle- 

 ben J, Jameson §, and others ? 



5. Do the inclined slaty strata in the vicinity of Ply^ 

 mouth belong to the transition class of rocks? 



Q. Does the upper part of the mountain of Cader-^dris 

 in Wales belong to the newest flaerr trap formation ? 



7. Are not the mountains in Cumberland ))rincipally 

 composed of transition rocks partially covered with the 

 newest flaetr trap formation ? 



8. Is not the porphyry of Cumberland a variety of clink- 

 stone porphyry ? 



p. Does the gypsum of Cumberland belong to the first or 

 second fla?tr gypsum formation? 



Scoltwid. 

 \, Does the syenltic greenstone of Fassnet Burn, in East 



• Neue Theorie von der entstehungder gan<rc> von A. G. "Wernex, 179 J. 

 + Beschreibunp^ des Giuben Gchaiides Hininiclsfiirst, von F. Mohs. 1804. 

 \ Mineralogy Bcinerkiingen bei gelcgenhcit einer Rclse durch den Merk- 

 •wurdigstcJi Thcil dcs Harz-geberges von Fricsleben. 1795. 



§ Mineralo^ical Description of Diimfriesihire; — and Ele.nenU of Geognosy. 



Lothian, 



