u 



LIST OF ILLUSTRATIONS. 



Plate I. — Professor Tyndall on Calorescence. 



Plates II. to IV. — Professor Owen on the Fossil Mammals of Australia. 



Plates V. & VI. — Dr. Wilson Fox on the Development of Striated Muscular Fibre. 



Plates VII. to XV. — Mr. W. K. Parker on the Structure and Development of the Skull 

 in the Ostrich Tribe. 



Plate XVI. — Dr. Everett on the Rigidity of Glass. 



Plates XVII. & XVIII. — Messrs. A. V. Harcourt and W. EssoN on the Laws of Con- 

 nexion between the Conditions of a Chemical Change and its Amount. 



Plate XIX. — Mr. J. W. Hulke on the Chameleon's Retina. 



Plate XX. — Dr. A. Matthiessen on the Expansion of Heat by Water and Mercury. 



Plate XXI. — Mr. Clerk Maxwell on the Viscosity or Internal Friction of Air and 

 other Gases. 



Plates XXII. to XXVIII. — Dr. H. Charlton Bastian on the Anatomy and Physiology 

 of the Nematoids, Parasitic and Free. 



Plates XXIX. & XXX.— Mr. C. W. Siemens on Uniform Rotation. 



Plates XXXI. to XLIII. — Dr. W. B. Carpenter on the Structure, Physiology, and 

 Development of Antedon (Comatula, Lamk.) rosaceus. 



