f() SCIENTIFrC NEWS. 



Muimlogicat 9. Doos the pitclistone of Ardnamurchan belong to tW 

 queries. newest floetz trap formation ? 



10. Is the granular quartz in the islands of Isla and Jura 

 subordinate to mica slate, or does it constitute a distinct 

 formation ? 



11. Are tlfe Cullin mountains in the isle of Skye com- 

 •posed of rocks belonj^ing to the newest tlcetz trap and se- 

 cond porphyry formations ? 



12. What are the geognostlc characters and relations of 

 the obscure egg in the isle of Egg one of the Hebrides .-' 



13. Of what rock is the isle of Staffa composed, and 

 what its geognostic characters and relations ,'' 



14. Is the porphyry of the isle of Rasay porphyry slate? 



15. What are the geognostic relations of the tremolite 

 . of Glen-EIg in Invernesshire.^ 



16. Does the upper part of Ben Nevis belong to the se- 

 <?oud porphyry formation; and if this be the case on what 

 does the porphyry rest .> 



17' Does the porphyry of the Brauernear Blair in Athol 

 belong to the first or second porphyry formation.* 



18. Does the granitic rock in the vicinity of Aberdeen be- 

 long to the granite or slenlte formation ? 



19. Does the sandstone of the Shetland islands belong to 

 the independent coal formation, or to any of the formations 

 described by Werner.^ 



20. In what species of mineral repository are the ores of 

 Sandlodge in Shetland contained, and what are the oryctog- 

 nostic and geognostlc characters and relations of these ores ? 



21. Does the claystone of Papa Stour, one of the Shet- 

 lands, belong to the newest floetz trap, or coal formations ? 



22. Does the serpentine of the islands of Unst and Fet'» 

 lar belong to the first or second serpentine formations? 



TO CORRESPONDENTS. 

 F, R. S. vnll perceive tlat the communication from Ptqfessor Vince, in- 

 serted in our Supplement, renders it less necessary to insert his favour. At the 

 same time that his general remarks upon the spirit most desirable to be shown 

 171 cnntToversional writings must be ailowedy it must be admitted in behalf 

 of the Editor of a periodical puUicalion, that very cogent and manifest reo- 

 !ons ought to present ihemtelveSy before he can be justified^ for interfering 

 in the discussions transmitted to the Public. 



The Editor having been^ contrary to expectation, disappointed of the 

 Meteorological Register, is still, obliged to postpone it: but he will take pro- 

 per miusures to prevent farther delay. 



