CONTENTS {continued). 



January 8, 1885. 



PAGB 



I. Experimental Kesearches in Magnetism. By Professor J. A. EwiNG, 



B.Sc., F.R.S.E., University College, Dundee . . . . . 58 



IT. On certain Definite Integrals. Is T o. 12. By W. H. L. Russell, F.E.S. . 62 



III. The Force Function in Crystals. By Alfred Einhorn, Ph.D. . . 05 



IY. On some Applications of Dynamical Principles to Physical Phenomena. 

 By J. J. Thomson, M.A., F.R.S., Fellow of Trinity College, and 

 Cavendish Professor of Physics in the University of Cambridge . . 66 



V. On a New Constituent of the Blood and its Physiological Import. By 

 L. C. Wooldridge, D.Sc, M.B., Demonstrator of Physiology in Guy's 

 Hospital 69 



VI. On the Marsupial Ovum, the Mammary Pouchy and the Male Milk 

 Glands of Echidna hystrix. By Wilhelm Haacke, Ph.D., Museum 

 Director to the Public Library, Museum, and Art Gallery of South 

 Australia, Adelaide, and late Assistant Director to the Zoological 

 Institute, Jena 72 



January 15, 1885. 



I. On the Chemical Composition of the Cartilage occurring in certain Inver- 

 tebrate Animals. By W. D. Halliburton, M.D., B.Sc. (Lond.), 

 Sharpey Physiological Scholar, University College, London . . .75 



II. On the Constant of Electromagnetic Rotation of Light in Bisulphide of 



Carbon. By Lord Rayleigh, F.R.S 76 



III. Absorption-spectra, Thermograms. By Captain Abney, B.E., F.R.S., and 



Colonel Festing, R.E 77 



IV. Observations on the Upper Partial Tones of a Pianoforte String, struck at 



one-eighth of its Length. By Alfred James Hipkins (of John 



Broadwood and Sons, London) 83 



January 22, 1885. 



I. Observations on the Chromatology of Actiniae. By C. A. MacMunst, 



M.A., M.D . 85 



II. On the Origin of the Proteids of the Chyle and the Transference of Food 

 Materials from the Intestine into the Lacteals. By E. A. Schafer, 

 F.R.S. From the Physiological Laboratory, University College, London 87 



