CONTENTS. 
PART I. 
I. A Memoir on the Theory of Mathematical Form. By A. B. Kempe, M.A., 
F.R.S ...page 1 
II. On Evaporation and Dissociation .- — Part I. By Professor William Ramsay, 
Ph.D., and Sydney Young, D.Sc., Lecturer and Demonstrator of Chemistry 
in University College, Bristol. Communicated by Professor G. G. Stokes, 
Sec. P.S. ..71 
III. On Evaporation and Dissociation .—Part II, A Study of the Thermal Properties 
of Alcohol. By William Ramsay, Ph.D., and Sydney Young, D.Sc. 
Communicated by Professor G. G. Stokes, Sec. R.S. ....... 123 
IV. On the Theory of Lubrication and its Application to Mr. Beauchamp Tower’s 
Experiments, including an Experimental Determination of the Viscosity of 
Olive Oil. By Professor Osborne Reynolds, LL.D., F.R.S. . . . 157 
Y. Further Observations on Enterochlorophyll, and Allied Pigments. By C. A. Mac 
Munn, M.A., M.D. Communicated by Professor M. Foster, Sec. R.S. . 235 
YI. Researches on Myohcematin and the Histohcematins. By C. A. Mac Munn, M.A., 
M.D. Communicated by Professor M. Foster, Sec. R.S. .267 
YII. An Experimental Investigation into the Form of the Wave-Surface of Quartz. 
By James C. McConnel, B.A. Communicated by R. T. Glazebrook, M.A., 
F.R.S. .'. . .299 
YIII. Description of Fossil Remains, including Foot-bones, of Megalania prisca.— 
Part IY. By Sir Richard Owen, K.C.B., F.R.S., &c .327 
IX. Dynamo-Electric Machinery. By J. ITopkinson, M.A ., D.Sc., F.R.S., and 
E. Hopkxnson, M.A., D.Sc. ..331 
Index to Part I. 
359 
