PHILOSOPHICAL TRANSACTIONS. 



Part II, 1883. 



Contents. 



IX. On the Skeleton of tlie Marsipobranch Fishes. Parti. The Myxinoids 



(Myxine and Bclellostomd). By William Kitchen Paekee, F.E.S. 

 X. On the Skeleton of tbe Marsipobrancb Fishes. Part II. Petromyzon. 

 By William Kitchen Paekee, F.E.S. 



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

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



XII. Experimental Besearches on tbe Electric Discbarge with the Chloride of 



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

 Ph.D., F.B.S., and Hugo W. Mullee, Ph.D., F.E.S. 



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



M.A. 



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

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

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

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

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

 a G-enus of Tropical Epiphyllous Fungi. By H. Mae shall Waed, 

 B.A. 



XVII. On tbe Atomic Weight of Grlucinum (Beryllium). By T. S. Humpidge, 



Ph.D., B.Sc. 



XVIII. On tbe Changes which take place in the Deviations of tbe 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. Ceeak, E.N". 

 XIX. Pelvic Characters of Tliylaeoleo 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. Euckee, M.A. 

 XXL The Direct Influence of G-radual Variations of Temperature upon the 



Eate of Beat of the Dog's Heart. By H. Newell Maetin, 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 tbe Philosophical Transactions, commencing with 1875. 

 may be had of Triibr.er and Co., 57, Ludgate Hill. 



