LIST OF ILLUSTRATIONS. 
Plates 1 and 2.—Professor W. A. Tilden and Mr, W. A. Shenstone on the 
Solubility of Salts in Water at High Temperatures. 
Plate 3. —Professor W. N. Hartley on Spectrum Photography in relation to New 
Methods of Quantitative Chemical Analysis. 
Plates 4 to 6.—Professor W. N. Hartley and Mr. W. E. Adeney on the Measure¬ 
ments of the Wave-lengths of Lines of High Refrangibility in the Spectra of 
Elementary Substances. 
Plate 7.—Messrs. W. H. Howell and F. Donaldson on the Heart of the Dog. 
Plates 8 to 10. —Drs. T. L. Brunton and J. T. Cash on Chemical Constitution, 
Physiological Action, and Antagonism. 
Plate 11.— Professor Owen on Teeth of a Large Extinct Genus. 
Plate 12. —Professor Owen on a Large Extinct Lizard from Pleistocene Deposits, 
New South Wales. 
Plate 13. —Captain W. de W. Abney and Dr. A. Schuster on the Total Solar 
Eclipse of May 17, 1882. 
Plate 14.— Professor Owen on a Large Extinct Monotreme from New South Wales. 
