tH« l*K^ YORK 



J/ay, igii S 



PROCEEDINGS 



ROYAL IRISH ACADEMY 



Volume XXIX, Section A, No. 2 



WILLIAM M'FADDEN ORR 



EXTENSIONS OF FOURIER'S AND THE 

 BESSEL-FOURIER THEOREMS 



SECOND PAPER 



DUBLIN 



HODGES, FIGGIS, & CO. Ltd. 



LONDON : WILLIAMS & NORGATE 



igl I 



P) jce Sixpence 



