PHILOSOPHICAL TRANSACTIONS. 



Part II, 1883. 



Contents. 



IX. On the Skeleton of the Marsipobranch Fishes. Part I. The Myxinoids 



(Myxine and JBdellostoma) . By William Kitchen Parker, F.E.S. 



X. On the Skeleton of the Marsipobranch Fishes. Part II. Petromyzon. 



By William Kitchen Parkee, F.E.S. 

 XI. On the Organisation of the Fossil Plants of the Coal-Measures. Part 

 XII; By W. C. Williamson, LL.D., F.E.S. 



XII. Experimental Researches on the Electric Discharge with the Chloride of 



Silver Battery. Part IV. By Waeeen De La Eue, M.A., D.C.L., 

 Ph.D., F.E.S., and Hugo W. Muller, Ph.D., F.E.S. 



XIII. On Electrical Motions in a Spherical Conductor. By Horace Lamb, 



M.A. 



XIV. Eesearches on the Foraminifera — Supplemental Memoir. On an Abyssal 



type of the Genus Orbitolites ; — a Study in the Theory of Descent. By 

 William B. Carpenter, C.B., M.D., LL.D., F.E.S. 

 XV. On the Affinities of TTiylacoleo. By Professor Owen, C.B., F.E.S., &c. 

 XVI. On the Morphology and the Development of the Perithecium of Meliola, 

 a G-enus of Tropical Epipbyllous Fungi. By H. Marshall Ward, 

 B.A. 



XVII. On the Atomic Weight of Glucinum (Beryllium). By T. S. Humpidge, 



Ph.D., B.Sc. 



XVIII. On the Changes which take place in the Deviations of the Standard Com- 



pass in the Iron Armour-plated, Iron, and Composite -built Ships of the 

 Eoyal Navy, on a considerable change of Magnetic Latitude. By Staff- 

 Commander E. W. Creak, E.N". 

 XIX. Pelvic Characters of Thylacoleo carnifex. By Professor Owen, C.B., 

 . F.E.S. 



XX. The Limiting Thickness of Liquid Films. By A. W. Eeinold, M.A., and 



A. W. Euceer, M.A. 



XXI. The Direct Influence of Gradual Variations of Temperature upon the 



Eate of Beat of the Dog's Heart. By H. Newell Martin, M.A., M.D., 

 D.Sc. 



Index to Part II. 



Price £2 10s. 



Extra volume (vol. 168) containing the Eeports of the Naturalists attached to the 

 Transit of Venus Expeditions. Price £3. 



Sold by Harrison and Sons. 



Separate copies of Papers in the Philosophical Transactions, commencing with 1875. 

 may be had of Trubrer and Co., 57, Ludgate Hill. 



