ix 



Page 



No. 188.— June 20, 1878. 



Notes on Physical Geology. No. V. Mr. George H. Darwin's Com- 

 ments on Note No. III. By the Rev. Samuel Haughton, M.D. F.E.S.... 447 



On the Acceleration of Oxidation by the Least Refrangible End of the 

 Spectrum. Note II. By Captain Abney, R.E., F.R.S 451 



A Tenth Memoir on Quantics. By Professor A. Cayley, F.R.S 452 



Osteology of Polyodon folium. By T. W. Bridge, B. A 454 



On Astrophiura permira, an Echinoderm-form intermediate between 

 Ophiuroidea and Asteroidea." By W. Percy Sladen, F.L.S., F.G.S 456 



Experimental Researches on the Temperature of the Head. Part II, III, 

 IV. By J. S. Lombard, M.D 457 



Note on the Effect of various Substances in Destroying the Activity of 

 Cobra Poison. By T. Lauder Brunton, M.D., F.R.S., and Sir Joseph 

 Fayrer, K.C.S.I., M.D., F.R.S 465 



The Life-History of Bacterium termo and Micrococcus, with further 

 Observations on Bacillus. By J. Cossar Ewart, M.D. Edin 474 



On the Life-History of Spirillum. By Patrick Geddes and J. Cossar 

 Ewart, M.D. Edin,, University College, London 481 



On an Easy and at the same time Accurate Method of Determining the 

 Ratio of the Dispersions of Glasses intended for Objectives. By Pro- 

 fessor G. G. Stokes, M.A., Sec. R.S 485 



On the Reversal of the Lines of Metallic Vapours. By G. D. Liveing, 

 M.A., Professor of Chemistry, and J. Dewar, M.A., F.R.S., Jacksonian 

 Professor, University of Cambridge. No. Ill 494 



An Experimental Investigation into the Velocities of Normal Propaga- 

 tion of Plane Waves in a Biaxal Crystal, with a Comparison of the 

 Results with Theory. By R. T. Glazebrook, B.A 496 



List of Presents , 503 



On the Thermo-Electric Properties of Liquids. By G. Gore, LL.D., F.R.S. 513 



No. 189. 



Observations on Arctic Sea- water and Ice. By Staff Surgeon E. L. 

 Moss, M.D 544 



Obituary Notice : — 

 Karl Ernst von Baer 



Index 



561 



