800 General Monthly Meeting [Dec. 1, 191:^, 



Royal Society of Lowtiow— Proceedings A, Vol. LXXXIX. Nos. 610-611 ; B, 



Vol. LXXXVII. Nos. 592-593. Svo. 1913. 

 Philosophical Transactions, B, Vol. CCIV. No. 309. 4to. 1913. 

 Celebration of the 250th Anniversary of the Royal Society, 1912. Svo. 



1913. 

 Royal Society of Netv South Wales — Journal and Proceedings, Vol. XLVII. 



Part 1. Svo. 1913. 

 St. Petersburg, Imperial Academy of Sciewces— Bulletin, 1913, Nos. 15-16. Svo. 

 Sanitary Institute, Eo^/aZ— Journal, Vol. XXXIV. No. 11. Svo. 1913. 

 Selhorne Society — Selborne Magazine for December, 1913. Svo. 

 Smithsonian Institution — Miscellaneous Collections, Vol. LXI. Nos. 1, 16. 



Svo. 1913. 

 Annual Report, 1912. Svo. 1913. 

 Societa degli Spettroscopisti Italiani — Memorie, Serie 2, Vol. II. Disp. 10. 



1913. 4to. 

 South Africa, Union o/— Agricultural Journal for October, 1913. Svo. 

 Tariff Reform League — Monthly Notes on Tariff Reform for November, 1913. 



Svo. 

 United Service Institution, Royal — Journal for November, 1913. Svo. 

 United States Department of Agricultwe —3 ouvnal of Agriciiltural Research, 



Vol. I. No. 1. Svo. 1913. 

 United States Department of Cotmnerce — Results of Magnetic Observations 



near Honolulu, 1911-12. 4to. 1913. 

 Bulletin of the Bureau of Standards, Vol. IX. Nos. 2-3. Svo. 1913. 

 United States Depjarttnent of the Jnierior— Administrative Reports, 1912. 



2 vols. Svo. 1913. 

 United States Patent O^ce- Gazette, Vol. CXCV. Nos. 4-5; Vol. CXCVI 



No. 1. Svo. 1913. 

 Victoria Institute — Journal, Vol. XLV. Svo. 1913. 

 Wainwnght, J. T., Esq. {the Author) — Investigation into the Second Law of 



Thermodynamics. Svo. 1913. 

 Western Australia, Agent-General — Statistical Register, 1911. 4to. 1913. 

 Western Society of Engineers — Journal, Vol. XVIII. No. 7. Svo. 1913. 



WEEKLY EVENING MEETING, 



Friday, May 2?>, 1913. 



His Grace The Duke of Northumberland, K.G. D.C.L. 

 LL.D. F.R.S., President, in the Chair. 



Professor Silvanus P. Thompson, D.Sc. LL.D. F.R.8. M.R.I. 

 The Secret of the Permanent Magnet. 



