vu 
CONTENTS. 
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PAGE 
706. On the distribution of electricity on two spherical surfaces . 1 
Phil. Mag., Ser. 5, t. v. (1878), pp. 54—60 
707. On the colouring of maps ........ 7 
Geogr. Soc. Proc., t. i. (1879), pp. 259—261 
708. Note sur la théorie des courbes de l’espace .... 9 
Assoc. Franç., Compt. Rend., t. ix. (1880), pp. 135—139 
709. On the number of constants in the equation of the surface 
PS — QR = 0 14 
Tidsskrift for Mathematik, Ser. 4, t. iv. (1880), pp. 145—148 
710. On a differential equation . .... ... 17 
Collectanea Mathematica, in memoriam Dominici Chelini, (Milan, 
Hoepli, 1881), pp. 17—26 
711. On a diagram connected with the transformation of elliptic 
functions .......... 26 
British Association Report, 1881, p. 534 
712. A partial differential equation connected with the simplest case 
of Abel’s theorem ......... 27 
British Association Report, 1881, pp. 534, 535 
713. Addition to Mr. Rowe’s “ Memoir on Abel's theorem” . . 29 
Phil. Trans., t. clxxii. (1881), pp. 751—758