UNIVERSITY COLLEGE, LONDON.-ORGANIC CHEMISTRY. 



PROFESSOR WILLIAMSON'S Course of Lectures on ORGANIC CI 

 MISTRY will commence on Thursday, the 9th of February. 



The Course consists of Thirty Lectures, on Mondays, Tuesdays, Wednesda] 

 Thursdays, and Fridays, from Eleven to Twelve o'clock. 

 Fee for the Course, Two Pounds. 



J. R. Seeley, M.A., Dean of the Faculty of Arts. 

 Charles C. Atkinson, Secretary to the Council. 

 January 3, 1865. 



Just published, price 38*., Vol. XXIII. Part III. of the 



TRANSACTIONS OF THE ROYAL SOCIETY OF EDINBURGH. 



Contents. 



I. Description of the Lithoscope, an Instrument for distinguishing Precious 

 Stones and other bodies. By Sir David Brewster, K.H., F.R.S. (With a 

 Plate.) 



II. On the Agrarian Laws of Lycurgus, and one of Mr. Grote's Canons of His- 

 torical Criticism. By Professor Blackie. 



III. On the Limits of our Knowledge respecting the Theory of Parallels. By 

 Professor Kelland. 



IV. On the Temperature of certain Hot Springs in the Pyrenees. By R. E. 

 Scoresby-Jackson, M.D., F.R.C.P. 



V. On Superposition. By Professor Kelland. Part II. (Continued from Vol. XXI. 

 p. 273.) (With a Plate.) 



VI. On the Variations of the Fertility and Fecundity of Women according to Age. 

 By J. Matthews Duncan, M.D. 



VII. On the most Volatile Constituents of American Petroleum. Bv Edmund 

 Ronalds, Ph.D. 



VIII. On Sun Spots, and their Connexion with Planetary Configurations. By 

 Balfour Stewart, Esq., M.A., F.R.S. 



IX. On the Freezing of the Egg of the Common Fowl. By John Davy, M.D., 

 F.R.SS. Lond. and Edin., &c. Communicated by Professor Maclagan. 



X. On the Morphological Relationships of the Molluscoida and Ccelenterata, and 

 of their leading Members, inter se. By John Denis Macdonald, R.N., F.R.S., 

 Surgeon of H.M.S. ' Icarus.' 



XI. On the Great Drift Beds with Shells in the South of Arran. By the Rev. 

 Robert Boog Watson, B.A., F.R.S.E. (With Two Plates.) 



XII. On the Principal Deities of the Rigveda. By J. Muir, Esq., D.C.L., LL.D. 



XIII. The Law of the Volumes of Aeriforms extended to Dense Bodies. By the 

 Rev. J. G. Macvicar, M.A., D.D., Moffat. 



XIV. Biographical Sketch of Adam Ferguson, LL.D., F.R.S.E., Professor of 

 Moral Philosophy in the University of Edinburgh. By John Small, M.A., 

 Librarian to the University. 



XV. On the Reputed Metrological System of the Great Pyramid. By Professor 

 C. Piazzi Smyth, Astronomer Royal for Scotland. (With Five Plates.) 



XVI. On the Theory of Isomeric Compounds. By Dr. A. Crum Brown. 



XVII. On the Theory of Commensurables. By Edward Sang, Esq. 



XVIII. On the Structure and Action of the Auriculo- Ventricular Valves. By 

 James Pettigrew, M.D, Communicated by W. Turner, M.B. (With Two 

 Plates.) 



Edinburgh : R. Grant and Son, 54 Prince's Street. 



London : Williams and Norgate. 



[ADVERTISEMENTS continued on 3rd page of Cover. 



