344 Royal Irish Academy. 



of my obligations to the Eoyal Irish. Academy for the very dis- 

 tinguislied honour it has been good enough to confer on me. The 

 Academy has always been associated, in my mind, with my great 

 Master in Quaternions, Sir "W. E.. Hamilton, and this consideration 

 makes me feel its kindness all the more. 



' ' Yours truly. 



"P. a tait. 



" The Rev. J. H. Beexaed, b.d." 



' ' Holm Leigh, West Eoad, Cambeidge, 

 ''March ISth, 1900. 

 " Deab Sie, 



" I thank you most heartily for your congratulations on the 

 great honour which your Society has paid me in making me one of 

 its Honorary Members. I should also to thank the Council of 



the Society, and to assure its Members that I appreciate most highly 

 the distinction they have conferred upon me. 



"With very many thanks, 



" Believe me, yours very sincerely, 



"J. J. Thomson. 

 " The Kev. J. H. Beenaed, d.d." 



" Chaelottenbueg, March 22nd, 1900. 

 "Sie, 



" I have the honour to thank you for your kind letter with 

 the Certificate it announced, and beg you to express before the Royal 

 Irish Academy my feelings of deep thankfulness for the extreme 

 distinction it awarded in voting my Honorary Membership. 



" Thanking you once more for your personal congratulations, I beg 

 to remain with much respect, 



" Tours very faithfully, 



"J. H. VAX 'l HOFF." 



