PROCEEDINGS OF 

 THE ROYAL SOCIETY, 



vol. xxvii. No. 185. 



4 



CONTENTS. fyfg 



January 10, 1878. 



PAGE 



I. Magnetic Observations taken during the Transit of Venus Expedition to 



and from Kerguelen Island. By the Eev. S. J. Perry, S.J., F.R.S. . 1 



II. On the Limits to the Order and Degree of the Fundamental Invariants of 

 Binary Qualities. By J. J. Sylvester, M.A., LL.D., F.R.S. , Professor 

 in the Johns Hopkins University, Baltimore, U.S. . . . . .11 



III. On the Structure and Development of the Skull in the Common Snake 



(Tropidonotus natrix). By W. K. Parker, F.R.S. . . . .13 



IV. Observations on the Nervous System of Aurelia aurita. By Edward 



Albert Schaper, Assistant Professor of Physiology in University Col- 

 lege, London ............ 16 



January 17, 1878. 



I. On Cobra Poison. By Alexander Pedler, F.C.S., Professor of Chemistry 



in the Presidency College, Calcutta . . . . • . . . .17 



II. On Repulsion resulting from Badiation. Part V. By William Crookes, 



F.R.S., V.P.C.S. 29 



January 24, 1878. 



I. New Determination of the Mechanical Equivalent of Heat. By J. P. 



Joule, LL.D., F.Pv.S 38 



II. The Cortical Lamination of the Motor Area of the Brain. By Bevan 



Lewis, F.R.M.S., Pathologist and Assist. Med. Officer to the West 

 Riding Asylum, and Henry Clarke, L.R.C.P. Lond., Med. Officer to 

 the West Riding Prison. (Plates 1-3.) 38 



III. Researches in Spectrum Analysis in connection with the Spectrum of the 



Sun. By J. Norman Lockyer, F.R.S. . . . . . .49 



For continuation of Contents see 2nd and 4<th pages of the Wrapper. 



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