LIST OF ILLUSTRATIONS. 
Plates XXXII. to XL. — Professor Owen on the Fossil Mammals of Australia. 
Plates XLI. to XLV. — Professor W. C. Williamson on the Organization of the Fossil 
Plants of the Coal-Measures. 
Plate XLYI. — Staff Captain F. J. Evans on the present Variation of the Compass. 
Plate XLVII. — Dr. A. Dupre on the Specific Heat and other Physical Characters of 
Mixtures and Solutions. 
Plates XLVIII. to L. — General Sir Edward Sabine on Terrestrial Magnetism. 
Plates LI. to LII. — Sir B. C. Brodie on the Action of Electricity on Gases. 
