Vlll CONTENTS. 



PAGE 



XXIX. The Visual, Grating and Glass-lens, Solar Spectrum (in 1884). 

 By Professor C. Piazzi Smyth, F.K.S.E., and Astronomer- 

 Royal for Scotland. (Plates LXXXIII.-CXLIIL), . 519 



XXX. Observations on the Recent Calcareous Formations of the 

 Solomon Group made during 1882-84. By H. B. Guppy, 

 M.B., F.G.S., Surgeon H.M.S. "Lark." Communicated by 

 John Murray, Ph.D. (Plates CXLIV., CXLV.), . 545 



XXXI. Observations on Atmospheric Electricity. By Professor C. 



Michie Smith. (Plate CXLVL), . . . .583 



XXXII. Note on Ectocarpus. By John Rattray, M.A., B.Sc, Scottish 

 Marine Station, Granton, Edinburgh. Communicated by 

 John Murray, Ph.D. (Plates CXLVIL, CXLVIIL), . 589 



XXXIII. Anatomy and Physiology of Patella vulgata. Part I. Ana- 



tomy. By R. J. Harvey Gibson, M. A. Communicated by 

 Professor Herdman, D.Sc. (Plates CXLIX.-CLIIL), . 601 



XXXIV. Detached Theorems on Circidants. By Thomas Muir, LL.D., 639 

 XXXV. On the Hessian. By Professor Chrystal, . . . 645 



Appendix — 



The Council of the Society, . 654 



Alphabetical List of the Ordinary Fellows, . . . 655 



List of Honorary Fellows, . . . . . .668 



List of Ordinary Fellows Elected during Sessions 1883-85, . 674 



Laws of the Society, ...... 681 



The Keith, Brisbane, and Neill Prizes, .... 688 



Awards of the Keith, Makdougall-Brisbane, and Neill Prizes, . 690 



Proceedings of the Statutory General Meetings, . . . 693 



List of Public Institutions and Individuals entitled to receive Copies 



of the Proceedings and Transactions, . . .701 



Index, ........ 707 



