144 Laws of Crystalline Reflexion. 



Having thus endeavoured to prove his claim to priority of 

 publication, and to establish the independence of his own re- 

 searches, which was all that was necessary for self defence, 

 Mr. Mac Cullagh concluded by saying, that he would there 

 drop the argument, without discussing his claim to priority in 

 the abstract, as he had an objection to disputes of such a kind, 

 and did not wish to pursue them any farther than he was 

 compelled to do. But if anyone thought it worth while to 

 examine the merits of this second question, he would find 

 the circumstances relating to it very fully and clearly stated in 

 the last number of the Proceedings of the Academy,* and 

 would thence be enabled to form a judgment for himself. 



* Vol. i. p. 217. 



