Contents of Volume XI. 
55 
718. 
719. 
720. 
721. 
722. 
723. 
724. 
725. 
726. 
727. 
728. 
729. 
730. 
731. 
732. 
Addition to Mr Geneses paper “ On the theory of envelopes ” . 
Messenger of Mathematics, t. vn. (1878), pp. 62, 63 
Suggestion of a mechanical integrator for the calculation of 
(Xdx+ Ydy) along an arbitrary path . . . . 
Messenger of Mathematics, t. vn. (1878), pp. 92—95; British Asso 
ciation Report, 1877, pp. 18—20 
Note on Arbogast’s method of derivations ..... 
Messenger of Mathematics, t. vn. (1878), p. 158 
Formulae involving the seventh roots of unity .... 
Messenger of Mathematics, t. vn. (1878), pp. 177—182 
A problem in partitions ........ 
Messenger of Mathematics, t. vii. (1878), pp. 187, 188 
Various notes 
Messenger of Mathematics, t. vm. (1879), pp. 45, 46: 126: 127 
On the deformation of the model of a hyperboloid 
Messenger of Mathematics, t. vm. (1879), pp. 51, 52 
New formulae for the integration of + -r\r~ 0 
V ^ V 
Messenger of Mathematics, t. vm. (1879), pp. 60—62 
A formula by Gauss for the calculation of log 2 and certain 
other logarithms ......... 
Messenger of Mathematics, t. vm. (1879), pp. 125, 126 
Equation of the wave-surface in elliptic coordinates . 
Messenger of Mathematics, t. vm. (1879), pp. 190, 191 
A theorem in elliptic functions . . ..... 
Proc. Lond. Math. Soc., t. x. (1879), pp. 43—48 
On a theorem relating to conformable figures .... 
Proc. Lond. Math. Soc., t. x. (1879), pp. 143—146 
[Addition to Mr Spottiswoode’s paper “ On the twenty-one 
coordinates of a conic in space ”] . 
Proc. Lond. Math. Soc., t. x. (1879), pp. 194—196 
On the binomial equation x p —1 = 0 ; trisection and quarti- 
section ........... 
Proc. Lond. Math. Soc., t. xi. (1880), pp. 4—17 
A theorem in spherical trigonometry ...... 
Proc. Lond. Math. Soc., t. xi. (1880), pp. 48—50 
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