1898.] on Some Exjyeriments with the Teleijhone. 789 



coil is wound. One branch is formed by two of these wires connected 

 in series, the other (in parallel with the first), by the third wire. 

 Steady currents would traverse all three wires in the same direction. 

 But the rapidly periodic currents from the interrupter distribute 

 themselves so as to make the self-induction, and consequently the 

 magnetic field, a minimum ; and this is effected by the assumption of 

 opposite values in the two branches, the ratio of currents being as 

 2 : — 1. On the same scale the total or main current is + 1. It 

 was shown by means of the telephone and flame that the current in 

 one branch was about the same (arithmetically) as in the main, and 

 that the current in the other branch was much greater. [R.J 



GENERAL MONTHLY MEETING, 



Monday, July 4, 1898. 



Sir James Criohton-Browne, M.D. LL.D. F.R.S. Treasurer and 

 Vice-President, in the Chair. 



The Special Thanks of the Members were returned for the 

 following Donations to the Fund for the Promotion of Experimental 

 Research at Low Temperatures : — 



£ 



Sir Frederick Abel, Bart. K.C.B 100 



Sir Andrew Noble, K.C.B 100 



Sir John Brunner, Bart. M.P. .. .. 50 



The Presents received since the last Meeting were laid on the 

 table, and the thanks of the Members returned for the same, viz. : — 



FROM 



The Lords of the Admiralty — Greenwich Observations, 1895. 4to. 1807. 

 (Greenwich Spectroscopic and Photographic Results, 1895. 4to. 1897. 

 Cape Meridian Observations, 1892 to 1895. 4to. 



The Cape Photographic Durchmusterung for the Equinox, 1875, Vol. II. 4to. 

 Annals of the Cape Observatory, Vol. IV. 4to. 

 Report of the Astronomer-Royal to the Board of Visitors, 1898. fol. 

 Tfie British Museum Trustees — Facsimiles from Early Printed Books in the 



British Museum, fol. 1897. 

 Catalogue of the Stowe MSS. Vol. I. Text ; Vol. II. Index. 8vo, 1895-96. 

 Catalogue of Greek Coins: Ionia (1892) ; Mysia(1892); Alexandria and the 



Nomes (1892) ; Troas, ^olis and Lesbos (1894) ; Caira, Cos, Rhodes, &o. 



(1897) ; Lycia, Pamphylia and Pisidia (1897). 8vo. 

 Catalogue of the Hindi, Panjabi, Sindhi and Pushtu Printed Books. 4to. 



1893. 

 Catalogue of Hebrew Books acquired during 1868-92. 4to. 1894. 

 Ahurrow, Charles, Esq. M. Inst. C.E. {the Compiler) — Annual Eeport relating to 



the Public Works Department of the Stadsraad, Johannesburg, S.A.R. "fol. 



1897. 



Vol. XY. (No. 92.) 3 f 



