454 Professor Tyndall, [Jan. 22, 



Rennie, James, Esq. F.R.S. M.i2./.— Mathematical Treatises. By the Rev. 

 J. West. 8vo. 1838. 

 Elements of Christian Theology. By Bishop Pretyman [Tomline]. 2 vols. 



8vo. 1799. 

 Traite de Trigonome'trie, par S. F. Lacroix. Svo. Paris, 1837. 

 Precis de Geometric, par A. J. Vincent. 8vo. Paris, 1837. 

 Traite' de Ge'ometrie Descriptive, par L. Lefe'bure de Fourcy. 8vo. Paris, 

 1837. 

 Hoi/al College of Surgeons— Csita}ogvie of the Library. 5 vols, Svo. 1840-55. 

 Mama, Accademia Pontificia de* Nuovi Lincei — Atti, Anno VII. Sess. 1, 2. 



Anno. X. Sess. 1-5. 4to. 1856-7. 

 Sdcksische Gesellschqft der Wissenschaften — Abhandlungen, Band VI. Hefte 

 1 und 2. 4to. 1857. 

 Berichte, 1856, Hefte 2. 1857, Hefte 1. 8vo. 

 Shaw, Alexander, Esq, MM, I.- Report on Dr. Fell's Treatment of Cancerous 



Diseases at Middlesex Hospital. Svo. 1857. 

 Smithsonian Institution, Washington — ^Tenth and Eleventh Annual Reports. Svo. 

 1856-7. 

 Smithsonian Contributions, Vol. IX. 4to. 1857. 



Researches on the Ammonio-Cobalt Bases ; by W. Gibbs and S. Genth. 4to. 

 1856. 

 Society of ^rfs— Journal for Nov. 1857. Svo. 

 Sopwith, Thos. Esq. M.R.I, {the Author) — Notes of a Visit to Egypt. 16to. 



1857. 

 Streatfeild, J. F. Esq. (the £diYor)— Ophthalmic Hospital Reports. No. 1. 



Svo. 1857. 

 United States Coast Swryey— Report for 1855. 

 Zoological 5oaV<y— Proceedings, Nos. 334-338. Svo. 1857. 



1858. 



WEEKLY EVENING MEETING, 



Friday, January 22. 



William Pole, Esq. M.A. F.R.S. Treasurer and Vice-President, 

 in the Chair. 



Professor J. Tyndall, F.R.S. 

 On some Physical Properties of Tee. 



The discourse was prefaced by some remarks on force in general ; 

 and more especial attention was afterwards directed to the force, 

 or application of force, manifested in the phenomena of crystalliza- 

 tion. Experimental illustrations were exhibited, and the speaker 

 passed on to the particular case of crystallized water, or ice. Being 



