PROCEEDINGS OE 

 THE ROYAL SOCIETY. 



VOL. XV. No. 91, 



t 



CONTENTS. 

 March 7, 1867. 



PAGE 



On the Influence exerted by tlie Movements of Respiration on the Circulation 

 of the Blood. Being the Ceoonian Lectuke for 1867, delivered by 

 Dr. J. BuEDON Sandeeson 391 



March 14, 1867. 



I. Note on Mr. Merrifield's New Method of calculating the Statical Stability of 

 a Ship. By W. J. Macqtjoen Rankine, C.E., LL.D., F.R.S. ... 396 



II. On the Theory of the Maintenance of Electric Currents by Mechanical 

 Work without the Use of Permanent Magnets. By J. Cleek Max- 

 well, F.R.S 397 



III. On certain Points in the Theory of the Magneto-electric Machines of Wilde, 

 Wheatstone, and Siemens. By 0. E. Yaeley, Esq. In a Letter to Pro- 

 fessor Stokes, Sec. R.S 403 



IV. On a Magneto-electric Machine. By William Ladd, F.R.M.S 404 



Ma/rch 21, 1867. 



I. Computation of the Lengths of the Waves of Light corresponding to the 

 Lines in the Dispersion- Spectrum measured by Kirchhoff. By Gboege 



Biddell Aiey, F.R.S., Astronomer Royal 405 



II. On a remarkable Alteration of Appearance and Structure of the Human 



Hair. By Eeasmus Wilson, F.R.S 406 



III. Remarks on the Nature of Electric Energy, and on the Means by which it is 



transmitted. By Chaeles Beooke, M.A., P.R.S., P.M.S., &c. ... 408 



March 28, 1867. 



I. A Comparison between some of the simultaneous Records of the Barographs 

 at Oxford and at Kew. By Baleoue Stewaet, LL.D., F.R.S., Super- 

 intendent of the Kew Observatory 413 



n. On the Ltmar-diurnal Variation of the Magnetic Declination, with special 



regard to the Moon's Declination, By G-. NErMAYEE 414 



TAYLOR AND FRANCIS, RED LION COURT, FLEET STREET. 



