ix 



No. 178.— Februari/ 1, 1877. 



Page 



On the Mean Directions and Distribution of the Lines of equal Barometric 

 Pressure, and their Relations to the Mean Direction and Force of the 

 Wind over the British Isles, &c. By J. A. Broun, F.R.S. (Plates 11 

 & 12.) 515 



The Meteorolog-y of the Bombay Presidency. By Charles Chambers, F.R.S., 

 Superintendent of the Colaba Observatory 539 



Fehrvarij 8, 1877. 



On the Hindoo Division of the Octave, with some additions to the Theory 

 of the Higher Orders. By R. H. M. Bosanquet, Fellow of St. John's 

 CoUege, Oxford 540 



On the Transport of Solid and Liquid Particles in Sewer Gases. By E. 

 Frankland, F.R.S 542 



Researches in Spectrum-Analysis in connexion with tlie Spectrum of the 

 Sun.— No. V. By J. Norman Lockyer, F.R.S > 546 



February 15, 1877. 



Letter to the President 546 



On Stratified Discharges.^ — HI. On a Rapid Contact-Breaker and the Phe- 

 nomena of the Flow. By William Spottiswoode, M.A., F.R.S 547 



Lymphatics and their Origin in Muscular Tissues. By George Hoggan, 

 "M.B., and Frances Elizabeth Hoggan, M.D 550 



Remarks chiefly on 487^=486. By William Shanks 551 



February 22, 1877. 



On Crookes's Force. By G. Johnstone Stoney, M.A., F.R.S., and Richard 

 J. Moss, F.C.S. ^ 553 



On the Structure of Magehna. By W. C. M'lntosh, M.D., F.R.S.E., F.L.S. 559 



On a new Foim of Tangential Equation. By John Casey, LL.D., F.R.S., 

 Professor of Higher Mathematics in the Catholic Lniversity of Ireland. . 564 



Addhion on the Bicircular Quartic. By A. Cayley, LL.D., F.R.S., Sadlerian 

 Professor of Mathematics in the Lniversity of Cambridge 565 



On the Influerce of Height in the Atmosphere on the Diurnal Variation of 

 the Earth's Magnetic Force. By J. A. Broun, F.R.S 566 



On Heat as a Geimicide t\ hen Discontinuously Applied. By John Tyndall, 

 F.R.S 569 



List of Presents 570 



On the Yaiiations of the Daily Range of Atmospheric Temperature as re- 

 corded at the Kew Observatory. By Balfour Stewart, LL.D., F.R.S., 

 Professor of Natural Philosophy at Owens College, Manchester 577 



VOL. XXY h 



