CONTENTS. 
li 
. . • 
PAGE 
385 
535. 
Note on the problem of envelopes ...... 
PAGE 
491 
Messenger of Mathematics, t. I. (1872), pp. 3, 4 
. 
388 
536. 
Note on Lagrange s demonstration of Taylor's theorem 
493 
Messenger of Mathematics, t. I. (1872), pp. 22—24 
. 
394 
537. 
Solutions of a Smith's Prize paper for 1871 . 
496 
Messenger of Mathematics, t. i. (1872), pp. 37—47, 71—77, 89—95 
ivy form . 
398 
538. 
Extract from a letter from Prof Cayley to Mr. C. W. Merri- 
field ........... 
517 
. 
401 
Messenger of Mathematics, t. i. (1872), pp. 87, 88 
'“539. 
Further note on Lagrange's demonstration of Taylor s theorem 
519 
. 
404 
Messenger of Mathematics, t, I. (1872), pp. 105, 106 
409 
540. 
On a property of the torse circumscribed about two quadric 
surfaces .......... 
520 
Messenger of Mathematics, t. I. (1872), pp. Ill, 112 
f Cayley . 
414 
541. 
On the reciprocal of a certain equation of a conic . 
522 
t. iv. (1868), 
Messenger of Mathematics, t. i. (1872), pp. 120, 121 
436 
*“542. 
Further note on Taylor s theorem ...... 
524 
, t. v. (1871), 
543. 
Messenger of Mathematics, t. i. (1872), p. 137 
On an identity in spherical trigonometry..... 
525 
f. Cayley . 
439 
Messenger of Mathematics, t. I. (1872), p. 145 
, t. v. (1871), 
544. 
On a penultimate quartic curve ...... 
526 
Messenger of Mathematics, t. I. (1872), pp. 178—180 
¡nations by 
458 
545. 
On the theory of the singular solutions of differential equations 
of the first order ......... 
529 
, t. v. (1871), 
Messenger of Mathematics, t. n. (1873), pp. 6—12 
!.S 
463 
546. 
Theorems in relation to certoÀn sign-symbols .... 
535 
;, t. v. (1871), 
Messenger of Mathematics, t. n. (1873), pp. 17—20 
of. Cayley. 
474 
547. 
On the representation of a spherical or other surface on a 
plane : a Smith’s Prize dissertation ..... 
538 
t. V. (1871), 
Messenger of Mathematics, t. n. (1873), pp. 36, 37