CONTENTS. xxvii 



PAGE 



XLII. On a Lower Limit to the Poiver exerted in the Function of Partu 



rition. By J. Matthews Duncan, M.D., &c, &c, . 639 



XLIII. On the Motions and Colours upon Films of Alcohol and Volatile 

 Oik, and other Fluids. By Sir David Brewster, K.H., 

 F.R.S. (With a Plate, XXXIX.), . . .653 



XLIV. On the Sophists of the Fifth Century, B.C. By Professor Blackie, 657 



XLV. On the Diurnal Variation of the Magnetic Declination at Tre- 

 vandrum, near the Magnetic Equator, and in both Hemispheres. 

 By John Allan Broun, Esq., F.R.S. , late Director of the 

 Observatory of His Highness the Maharajah of Travancore, 

 G.C.S.I., at Trevandrum. (With five Plates, XL.-XLIV.) 600 



XLVI. On an Application of Mathematics to Chemistry. By Alexander 



Crum Brown, M.D., D.Sc., . . .691 



XLVI1. Description of Pygopterus Greenockii (Agassis), with Notes on 

 the Structural Relations of the Genera Pygopterus, Amblyp- 

 terus, and Eurynotus. By Ramsay H. Traquair, M.D., 

 Demonstrator of Anatomy in the University of Edinburgh. 

 Communicated by Wm. Turner, M.B. (With a Plate, 

 XLV.), . 701 



XLVIII. On the Physiological Action of the Calabar Bean (Physostigma 

 venenosum, Balf.) By Thomas R. Fraser, M.D., Assistant 

 to the Professor of Materia Medica in the University of 

 Edinburgh. Communicated by Professor Christison, M.D. 

 D.C.L., V.P.R.S.E., .... 



Proceedings of Statutory General Meetings, &c, 



List of Members Elected, ...... 



List of the present Ordinary Members, in the order of their Election, . 

 List of Non-Resident and Foreign Members, elected under the Old Laivs, 



„ Honorary Fellows, . ..... 



„ Fellows Deceased, Resigned, and Cancelled, from 1864 to 1867, 

 Public Institutions, &c, entitled to receive the Transactions and Proceedings of 

 the Society, ....... 



List of 'Donations continued from Vol. XXIII., p. 855, 

 Index, ....... 



715 



789 

 795 

 797 

 804 

 804 

 806 



808 

 810 

 831 



