Vill CONTENTS. 
NOTICES AND ABSTRACTS 
OF 
MISCELLANEOUS COMMUNICATIONS TO THE SECTIONS. 
MATHEMATICS ann PHYSICS. 
MATHEMATICS. 
Address by G. G. Stoxss, M.A., F.R.S., Lucasian Professor of Mathematics 
in the University of Cambridge, President of the Section. .............. 
Rey. F. Basnrortu on Capillary Attraction ...............0ssesseccrece 
Professor BoouE on the Differential Equations of Dynamics............... 
Rey. Dr. Boor on an Instrument for describing Geometrical Curves; invented 
Litied 8 lor!) (cs eran Hermon occ oC Apo ann o sco Oe 
Professor A. CAYLEY on a certain Curve of the Fourth Order.............. 
—_—_———- on the Representation of a Curve in Space by means of 
eq epnerand Monoid Surtice ©. \.. .t)ci.'s ss « vials ru a 5 wana elu tale ciate) talaeeneene 
Mr. W. Esson on the Curvature of the Margins of Leaves with reference to 
BRPEMESERTOWAMN soc ccs aidin'e' 010 ee o's vawbrd bbe Hucaleewie ety «alee eee ene 
Sir Wit11am Rowan Hamixton, Quaternion Proof of a Theorem of Reci- 
PROCHLZOL Curves in Space: ....... xfs cidsleldcacch doe So oCiet ote ta) /alete teeta teteteamenent 
Rey. Ropert Har ey on a certain Class of Linear Differential Equations . . 
Mr. T. A. Hirst on the Volumes of Pedal Surfaces ...........00eeee eee 
Professor WILLIAM JOHN Macquorn RaAnxKINE on the Exact Form and Mo- 
tion of Waves at and near the Surface of Deep Water .............20055 
Mr. W. H. L. Russet on Recent Discoveries made in the Calculus of 
VATED OLS isi ovasarevecaye}s cieljoleis aic'a/a's « /s) iusiay. oie eichepegenNieeel Reine ote) Siete 
Mr. C. M. Witticu on some Models of Sections of Cubes .............005 
ASTRONOMY. 
Mr. Isaac AsHe’s Cosmogonical Speculations .........0- eee eeeeeeeeees 
Mr. W. R. Brrr on a Group of Lunar Craters imperfectly represented in Lunar 
IU EETIS fens ose rate tel aeictercimpevale areleisi sys eisis nie + oie avs\a"a alleles ste ete chee eet 
Rey. Professor CHaLiis on the Augmentation of the Apparent Diameter of 
a Body by its Atmospheric Refraction. ............02+2ccresscececeves 
on the Zodiacal Light, and on Shooting-Stars .......... 
Professor HENNESSY on some of the Characteristic Differences between the 
Configuration of the Surfaces of the Earth and Moon ............++++:- 
Mr. Witri1am Lassext on a Brilliant Elliptic Ring in the Planetary Nebula, 
Pee SGN DOT GS! osc s cee eee occa Ss eee 
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