PHILOSOPHICAL TEANS ACTIONS. 



Part III, 1882. 



Contents. 



XV. On a Class of Invariants. By John C. Malet, M. A. 



XVI . Description of Portions of a Tusk of a Proboscidian Mammal (N'otelephas 

 Australis, Owen). By Professor Owen, C.B., F.R.S., &c. 



XVII. Memoir on the Theta-Functions, particularly those of two Variables. 



By A. E. Forsyth, F.E.S., &c. 



XVIII. On Seismic Experiments. By J". Milne, F.Gt.S., and T. G-ray, B.Sc, 



F.R.S.E. 



XIX. Report of an Examination of the Meteorites of Cranbourne, in Australia ; 



of Rowton, in Shropshire ; and of Middlesbrough, in Yorkshire. By 

 Walter Flight, D.Sc., F.G.S. 



XX. On the Development of the Ossicula Auditus in the Higher Mammalia. 

 By Alex. Fraser, M.B. 



XXI. Contributions to the Anatomy of the Central Nervous System in Verte- 

 brate Animals. By. Alfred Sanders, M.R.C.S., F.L.S. 



XXII. On the Influence of the Galvanic Current on the Excitability of the 

 Motor Nerves of Man. By Augustus Waller, M.D., and A. de 

 Watteville, M.A., B.Sc. 



XXIII. The Croonian Lecture. — On the Rhythm of the Heart of the Frog, 



and on the Nature of the Action of the Vagus Nerve. By W. H. 



G-ASKELL, M.D. 



XXIV. An Attempt at a complete Osteology of Hypsilophodon Foxii ; a 



British Wealden Dinosaur. By J. W. Hulke, F.R.S. 



XXV. The Minute Anatomy of the Thymus. By Herbert Watney, M.A., 

 M.D. 



XXVI. On the Effects of Heat on certain Haloid Compounds of Silver, 

 Mercury, Lead, and Copper. By G-. F. Rodwell. 



XXVII. On the Specific Heat and Heat of Transformation of the Iodide of 

 Silver, Agl, and of the Alloys Cu 2 I 2 .AgI; CuJ 2 .2AgI • Cu 2 I 2 .3AgI ; 

 Cu 2 I 2 .4AgI; Cu 2 I 2 .12AgI; Pbl 2 .AgI. By Professor Manfredo 

 Bellati and Dr. R. Romanese. 



Index to Part III. 



Price £2 10s. 



