44 Antiquarian Notes. 



run of engineering papers. I must congratulate Mr. Praeger in 

 having obtained so many rare plants, including one new to 

 Ireland altogether. 



Mr. Armstrong — I would like to ask Mr. Young if be can 

 give me any information regarding the theory accounting for 

 the peculiar formation of the rocks of the Causeway ? 



Mr. Young — Professor James Thompson's paper was quite 

 conclusive. I am pretty sure I have copy of it, which I will be 

 happy to place before Mr. Armstrong at any time. 



