LIST OF ILLUSTRATIONS. 
Plates 8 to 17.—Mr. W. K. Parker on the Skeleton of the Marsipobranch Fishes.— 
Part I. The Myxinoids ( Myxine and Bdellostoma). 
Plates 8, 10, 14, 15, and 18 to 26. —Mr. W. K. Parker on the Skeleton of the 
Marsipobranch Fishes.—Part II. Petromyzon. 
Plates 27 to 34. —Professor W. C. Williamson on the Organization of the Fossil 
Plants of the Coal-Measures. 
Plates 35 and 36.— Messrs. W. De La Rue and H. W. Muller on the Electric 
Discharge with the Chloride of Silver Battery. 
Plates 37 and 38.- —Dr. W. B. Carpenter on Orbitolites tenuissima. 
Plates 39 to 41. —Professor Owen on the Affinities of Thylacoleo. 
Plates 42 to 44. —Mr. H. M. Ward on the Morphology and the Development of the 
Perithecium of Meliola, a Genus of Tropical Epiphyllous Fungi, 
Plate 45. —Dr. T. S. Humpidge on the Atomic Weight of Gluciniun (Beryllium). 
Plate 46.— Professor Owen on the Pelvic Characters of Thylacoleo carnifex. 
Plate 47. —Professors A. W. Reinold and A. W. Rucker on the Limiting Thickness 
of Liquid Films. 
Plates 48 and 49.— Professor EL N. Martin on the Direct Influence of Gradual 
Variations of Temperature upon the Rate of Beat of the Dog’s Heart. 
