235 



7. " Are there dangerous shallows off this Cape, and are 

 they near the shore, or at some distance? 



8. " The same questions are proposed in reference to the 

 cape, or headland Downpatrick [county Mayo] ?" 



In addition to these queries, written originally in English, 

 Mr. Downes communicated the substance of a passage in the 

 Danish part of the letter, of which the following is a transla- 

 tion: 



" Professor Magnusen, and many other distinguished Ice- 

 landers, are descended from various Irish and Scotch prin- 

 ces and kings, as will be fully elucidated in the British 

 and Irish Antiquities ; but a detailed account of the gene- 

 alogies requires much and minute preparatory research. 

 We must try to excite increased interest, otherwise our 

 great work will never be published : it would extend to 

 four such volumes as the American Antiquities. Is there 

 any prospect of an adequate subscription towards the com- 

 pletion of the work, or must it be given up altogether ?" 



Mr. Downes suggested to the Academy the propriety 

 of contributing liberally to the furtherance of the two above- 

 mentioned works projected by the Society of Northern 

 Antiquaries, as likely to be highly interesting to the Academy 

 and to Ireland in general. 



Dr. Barker exhibited to the meeting the production of 

 carbonic acid in the solid state, as effected by compres- 

 sion and refrigeration, according to the method discovered 

 by Thillorier, and with the simplified apparatus of Mr. 

 Addams. 



DONATIONS. 



Comptes Rendus Hebdomadaires des Seances de I'Aca- 

 demie des Sciences. Par MM. les Secretaires Perpetuels. 

 Second Semestre. Nos. 17, 18. Presented by the Academy. 



