LIST OF ILLUSTRATIONS. 
Plates I. to IX. — Professor W. C. Williamson on the Organization of the Fossil Plants 
of the Coal-measures. 
Plates X. to XV. — Mr. H. N. Moseley on the Anatomy and Histology of the Land- 
Planarians of Ceylon. 
Plate XVI. — Professor Flower on a newly discovered Extinct Ungulate from Patagonia. 
Plates XVII. to XIX. — Professor Tyndall on the Atmosphere as a Vehicle of Sound. 
Plates XX. to XXVII. — Professor Owen on the Fossil Mammals of Australia. 
Plates XXVIII. to XXXVII. — Mr. W. K. Parker on the Structure and Development 
of the Skull in the Pig. 
