CONTENTS. 



VOL. LV. 



No. 331. January 18, 1894. 



Page 



On Homogeneous Division of Space. By Lord Kelvin, P.R.S 1 



An Estimate of the Degree of Legitimate Natality, as shown in the 

 Table of Natality compiled by the Author from Observations made 

 at Budapest. By Joseph Korosi, Member of the Hungarian 

 Academy of Sciences, Director of Municipal Statistics 16 



Results derived from the Natality Table of Korosi by employing the 

 Method of Contours or Isogens. By Francis Galton, F.R.S 18 



Appendix to a Communication entitled " The Mechanical Equivalent of 

 Heat." By E. H. Griffiths, M.A. . 23 



On the Reflection and Refraction of Light. By G. A. Schott, B.A. 

 (Cantab.), B.Sc. (Lond.), formerly Scholar of Trinity College, Cam- 

 bridge 26 



On the Transformation of Optical Wave Surfaces by Homogeneous 



Strain. By Oliver Heaviside, F.R.S 30 



List of Presents .., 43 



January 25, 1894. 



On Intra-cranial Pressure. Preliminary Note. By Leonard Hill, 

 M.B., Assistant Professor of Physiology, University College, London 52 



Experimental Researches into the Functions of the Cerebellum. By 

 J. S. Risien Russell, M.D., M.R.C.P., Assistant Physician to the 

 Metropolitan Hospital 57 



The Effect produced upon Respiration by Faradic Excitation of the 

 Cerebrum in the Monkey, Dog, Cat, and Rabbit. By W. G. Spencer, 

 M.S., M.B., Assistant-Surgeon to the Westminster Hospital 61 



The Pathology of the (Edema which accompanies Passive Congestion. 

 By Walter S. Lazarus-Barlow, M.B., M.R.C.P 62 



List of Presents .., f> 



On Copper Electrolysis in Vacuo. By William Gannon, M.A., " 1851 

 Exhibition" Scholar, Queen's College, Gal way 66 



Note on the Action of Copper Sulphate and Sulphuric Acid on Metallic 

 Copper. By Arthur Schuster, F.R.S 84 



