PROCEEDINGS OF 

 THE ROYAL SOCIETY. 



December 11, 1884. 



PAGE 



I. The Absorption- spectra of the Alkaloids. By W. N. Haetley, F.R.S., 



Professor of Chemistry, Royal College of Science, Dublin 1 



II. On the Function of the Thyroid Gland. By Professor Yictoe Hoeslet, 



B.S., M.B., F.R.C.S. 5 



III. On the Development of the Arteries of the Abdomen and their Relation 



to the Peritoneum. By C. B. Lockwood 8 



IY. On the Occurrence of a Hydroid Phase of Limnocodium Sowerbii, Allman 

 and Lankester. By Aleeed G-ibbs Bottene, Assistant Professor of 

 Zoology in University College, London 9 



December 18, 1884. 



I. On the Evidence of Fossil Plants regarding the Age of the Tertiary 



Basalts of the North-East Atlantic. By J. Staekie Gaednee . . 14 



II. Note on the Later Stages in the Development of Balanoglossus Koivalevskii 

 (Agassiz), and on the Affinities of the Enteropneusta. By William 

 Bateson, B.A., Scholar of St. John's College, Cambridge ... 23 



III. On Keflex Excitation of the Cardiac Nerves in Fishes. By J. A. 



McWilliam, M.D., Demonstrator of Physiology, University College, 

 London. From the Physiological Laboratory, University College . 31 



IV. The Influence of Stress and Strain on the Physical Properties of Matter. 



Part I. Moduli of Elasticity — continued. The Yiscosity of Metals. 



By Heebeet ToMLiNSoif, B.A 42 



Y. Professor Malet's Classes of Invariants identified with Sir James Cockle's 



Criticoids. By the Eev. Robeet Haeley, F.R.S 45 



For continuation of Contents see Zrd and 4ith pages of Wrapper. 



Price Five Shillings* 



