CONTENTS— (continued). 



March 15, 1877. 



PAGE 



I. On the Tides of the Arctic Seas. — Part VII. Tides of Port Kennedy, in 

 Bellot Strait. (Final Discussion.) By the Rev. Samuel Hatjghton, 

 M.D. Dublin, D.C.L. Oxon., F.E.S., Fellow of Trinity College, Dublin . . 63 

 II. Studies in the Chinoline Series. — I. Transformation of Leucoline into Aniline. 



By Prof. James Dewae, M.A 65 



III. On the Density of Solid Mercury. By Prof. J. W. Mallet, University of 



Virginia . . . , 71 



IV. The Automatic Action of the Sphincter Ani. By W. E. Gowees, M.D., 



Assistant Physician to University College Hospital 77 



V. Description of the Process of Verifying Thermometers at the Kew Observatory. 



By Feancis Galton, F.E.S , 84 



March 22, 1877. 



I. On Stratified Discharges. — IV. Stratified and Unstratified Forms of the Jar- 

 Discharge. By William Spottiswoode. M.A., Treas.E.S 90 



II. On Friction between Surfaces moving at Low Speeds. By Fleeming Jenkin, 

 F.E.SS. L. & E., Professor of Engineering in the University of Edinburgh, 

 and J. A. Ewing 93 



III. Magnetic Observations at Kerguelen. By the Eev. S. J. Peeey, S.J., F.E.S. 95 



IV. On the Variations of the Daily Eange of the Magnetic Declination as recorded 



at the Kew Observatory. By Baleoue Stewaet, LL.D., F.E.S., Professor 



of Natural Philosophy at the Owens College, Manchester 102 



List of Presents 121 



EEEATA IN VOL. XXV. 



Page 508, equation (21.), in the denominator of the integral for cos 9 

 read cos tan 6. 



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