70 
Contents of Volume XIII. 
PAGE 
948. Report of a Committee appointed for the purpose of carrying 
on the tables connected with the Pellictn equation from 
the point where the work was left by Degen in 1817 . . 430 
British Association Report, (1893), pp. 73—120 
949. On Halphen’s characteristic n, in the theory of curves in 
space ........... 468 
Crelle’s Journal der Mathem., t. cxi (1893), pp. 347—352 
950. On the sextic resolvent equations of Jacobi and Kronecker . 473 
Crelle’s Journal der Mathem., t. cxm (1894), pp. 42—49 
951. Non-Euclidictn geometry ...... 
480 
Camb. Phil. Soc. Trans., t. xv (1894), pp. 37—61 
952. On the kinematics of a plane, and in particular on three- 
bar motion: and on a curve-tracing mechanism 
Camb. Phil. Soc. Trans., t. xv (1894), pp. 391—402 
505 
953. On the nine-points circle . 
517 
Messenger of Mathematics, t. xxm (1894), pp. 23—25 
954. On the nine-points circle of a plane triangle . 
520 
Messenger of Mathematics, t. xxm (1894), pp. 25—27 
955. The numerical value of IT (f), = r (1 +i) . . . . . 522 
Messenger of Mathematics, t. xxm (1894), pp. 36—38 
525 
Messenger of Mathematics, t. xxm (1894), pp. 42—47 
957. Illustrations of Sylow’s theorems on groups 
530 
Messenger of Mathematics, t. xxm (1894), pp. 59—62 
958. On the surface of the order n which passes through a given 
cubic curve .......... 534 
Messenger of Mathematics, t. xxm (1894), pp. 79, 80 
959. Note on Pliickers equations ....... 536 
Messenger of Mathematics, t. xxiv (1895), pp. 23, 24 
960. On the circle of curvature at any point of an ellipse . . 537 
Messenger of Mathematics, t. xxiv (1895), pp. 47, 48 
961. A trigonometrical identity .... 
Messenger of Mathematics, t. xxiv (1895), pp. 49—51 
538 
962. Co-ordinates versus quaternions 
Proc. Roy. Soc. Edin., t. xx (1895), pp. 271—275 
541