CONTENTS 



SECTION A.-MATHEMATIGAL, ASTEONOMICAL, AND 

 PHYSICAL SCIENCE 



Feaser (John), M.A., F.T.C.D. :— page 



A Method of Eeduction of a Quartic Surface possessing 

 a Nodal Conic to a Canonical Form. With an 

 Application of the same Method to the Eeduction 

 of a Binodal Quartic Curve to a Canonical Form, 71 



HiNTON (C. H.) : — 



The Geometrical Meaning of Cayley's Formulae of 



Orthogonal Transformation, .... 59 



Johnston (J. P.), M.A., D.Sc. :— 



Method of obtaining the Cubic Curve having three 



given Conies as Polar Conies, .... 66 



JoLY (Charles Jaspee), M.A., D.Sc, F.T.C.D. :— 



Integrals depending on a Single Quaternion Variable, 6 



The Multi-linear Quaternion Function, ... 47 



Some New Eelations in the Theory of Screws, . . 69 



JoLY (John), D.Sc, F.E.S., F.G.S. :— 



Some Experiments on Denudation by Solution in Fresh 



and Salt Water, 21 



EoBEETs (Eev. W. E. Westeopp), B.D., F.T.C.D. :— 



Some Properties of a certain Quintic Curve, . - 34 

 On Bicursal Curves, ....... 53 



