PROCEEDINGS OF 

 THE ROYAL SOCIETY. 



VOL. XX. 



No. 132. 



CONTENTS. 



February 1, 1872. 



J PAGE 



I. On the Lunar Variations of Magnetic Declination at Bombay. By Charles 



Chambers, F.R.S., Superintendent of the Colaba Observatory .... 135 



II. Note on a possible Ultra-Solar Spectroscopic Phenomenon. By C. Piazzi 



Smyth, F.R.S., Astronomer Eoyal for Scotland 136 



III. On the Normal Paraffins. By C. Schorlemmer, F.R.S 137 



IV. Note on the Eclipse of the Sun (Dec. 1871) as observed at Sholoor. By 



M. Janssen 138 



February 8, 1872. 



I. A Letter from His Majesty the Emperor of Brazil, addressed to General 

 Sir Edwaed Sabine, K.C.B. 139 



II. Experiments concerning the Evolution of Life from Lifeless Matter. By 

 Walter Noel Hartley, F.C.S., Demonstrator of Chemistry, King's 

 College, London 140 



III. Experiments on the directive power of large Steel Magnets, of Bars of Mag- 



netized Soft Iron, and of Galvanic Coils, in their action on external small 

 Magnets. By George Biddell Airy, Astronomer Royal, C.B., P.R.S. — 

 With Appendix containing an Investigation of the Attraction of a Gal- 

 vanic Coil on a small magnetic mass. By James Stuart, Esq., M.A., 

 Fellow of Trinity College, Cambridge 158 



IV. On a mode of Measuring the Internal Resistance of a Multiple Battery by 



adjusting the Galvanometer to Zero. By M. Jules Raynaud .... 159 



February 15, 1872. 



I. On the Induction of Electric Currents in an Infinite Plane Sheet of uniform 

 conductivity. By Prof. J. Clerk Maxwell, F.R.S 160 



II. On some Derivatives of Uramidobenzoic Acid. By P. Griess, F.R.S. . . 168 



For continuation of Contents see Ath page of Wrapper. 



