The Wilde Lectures. xli. 



1909. (March 9.) " On the Influence of Moisture on Chemical 



Change in Gases." By Dr. H. Brereton Baker, F.R.S. 

 (8 pp.) 



1910. (March 22.) " Recent Contributions to Theories regard- 



ing the Internal Structure of the Earth." By Sir 

 Thomas H. Holland, K.C.I.E., D.Sc, F.R.S. 



SPECIAL LECTURES. 



1913. (March 4.) " The Plant and the Soil." By A. D. Hall, 



M.A., F.R.S. 



1914. (March 18.) " Crystalline Structure as revealed by 



X-rays." By Professor W. H. Bragg, M.A., F.R.S. 



1915. (May 4.) " The Place of Science in History." By Pro- 



fessor Julius MacLeod, D.Sc. 



JOULE MEMORIAL LECTURE. 



1920. (Dec. 14.) " The Work and Discoveries of Joule." By 

 vSir Dugald Clerk, K.B.E., D.Sc, F.R.S. 



Awards of the D alt on Medal. 



1898. Edward Schunck, Ph.D., F.R.S. 



1900. Sir Henry E. Roscoe, F.R.S. 



1903. Prof. Osborne Reynolds, LL.D., F.R.S. 



1919. Prof. Sir Ernest Rutherford, M.A., D.Sc, F.R.S. 



