CONTENTS 



PA.SE 



i. TIDES AND THE RIGIDITY OF THE EARTH . . i 

 Prof. A. E. H. Love, F R.S. 



2. DR. PAVY AND DIABETES 13 



F. Gowland Hopkins, M.A., M.B., D.Sc, F.R.S. 



3. SIR J. J. THOMSON'S NEW METHOD OF CHEMICAL 



ANALYSIS 48 



F. W. Aston, B.A., B.Sc, A.I.C. 

 {Illustrated.) 



4. CONDITIONS OF CHEMICAL CHANGE. II. Photo- 



chemical Change in Gases {continued) .... 66 



D. L. Chapman, M.A. 

 {Illustrated?) 



5. THE STRUCTURE OF METALS 87 



Cecil H. Desch, D.Sc, Ph.D. 

 {Illustrated) 



6. THEORIES AND PROBLEMS OF CANCER. Part II. . 104 



Charles Walker, D.Sc, M.R.C.S., L.R.C.P. 



7. THE PLANET MARS I20 



James N. Worthington. 



iii 



