X 



III. " Effects of Strain on the Crystalline Structure of Lead." By 



J. C. W. Humfrey, B.Sc. Communicated by Professor 

 Ewing, F.R.S. 



IV. "The Spectra of Potassium, Rubidium, and Caesium, and their 



Mutual Relations." By H. Ramage, B.A. Communicated by 

 Professor Liveing, F.R.S. 



V. " On some Definite Integrals, and a New Method of reducing a 

 Function of Spherical Co-ordinates to a Series of Spherical 

 Harmonics." By Professor A. Schuster, F.R.S. 



June 12, 1902. 



Professor EMERSON REYNOLDS, Vice-President, in the Chair. 



Professor Rubert Boyce, Mr. Thomas Mather, Professor W. M. 

 Flinders Petrie, Mr. William Jackson Pope, and Mr. Edward Saunders 

 were admitted into the Society. 



A List of the Presents received was laid on the table, and thanks 

 ordered for them. 



The following Papers were read : — 



I. " The Influence of an Atmosphere of Oxygen on the Respiratory 

 Exchange." By L. Hill, F.R.S., and J. J. R. Macleod. 



II. " The Influence of High Pressures of Oxygen on the Circulation 

 of the Blood." By L. Hill, F.R.S., and J. J. R. Macleod. 



III. " On the Parasitism of Fseuclomonas destrudans." By Professor 



M. C. Potter. Communicated by Sir M. Foster, Sec. R.S. 



IV. " On the Toxic Properties of the Saliva of certain ' Non-poisonous' 



Colubrines." By Professor A. Alcock, F.R.S., and Dr. 

 L. Rogers. 



V. " The Dissipation of Energy by Electric Currents induced in an 

 Iron Cylinder when rotated in a Magnetic Field." By Pro- 

 fessor E. Wilson. Communicated by Sir W. Preece, K.C.B., 

 F.R.S. 



VI. "A Note on the Effect of Daylight upon the Propagation of 

 Electromagnetic Impulses over Long Distances." By G. 

 Marconi. Communicated by Professor Fleming, F.R.S. 



VII. " Note on a Magnetic Detector of Electric Waves which can be 

 employed as a Receiver for Space Telegraphy." By G. 

 Marconi. Communicated by Professor Fleming, F.R.S. 



