CLASSIFICATION. 
Geometry : 
Möbius’ circular relation, 628 
Malfatti’s problem, 622 
Inversion, 559 
Projections, 592, 614 
Mechanical construction of curves, 557, 618 
Quartic curve and functions of a single parameter, 606 
Cartesian, 565 
Cassinian, 601 
Sextic curves, 613, 624 
Correspondence, residuation and transformation, 566, 573, 589, 617 
Conformal representation, 627 
Illustrations of algebraical theorems, 558, 561 
Three-bar motion, 623 
Spheroidal Trigonometry, 583 
Dupin’s theorem, 571 
Cyelide, 569 
Steiner’s surface, 556 
Surface orthogonal to set of lines, 625 
Conic torus, 615 
Quadrics in hyperdimensional space, 570 
Astronomy and Dynamics : 
Presidential address, 579 
Elliptic motion, 581 
Precession and nutation, 582 
General equations of dynamics, 577, 584, 590 
Potentials, attractions and prepotentials, 602, 603, 604, 605, 607