Ill 



The following Papers were read : — 



I. " On the Spark Discharge from Metallic Poles in Water." By- 

 Sir Norman Lockyer, K.C.B., F.E.S. 



II. " Experimental Eesearches on Drawn Steel. Part I. — Magnetism 

 and Changes of Temperature. Part II. — Eesistivity, Elas- 

 ticity, and Density, and the Temperature Coefficients of 

 Eesistivity and Elasticity." By J. E. Ashworth. Communi- 

 cated by Professor Schuster, F.E.S. 



III. " On the Effect of Magnetisation on the Electric Conductivity of 



Iron and Nickel." By G. Barlow. Communicated by Pro- 

 fessor A. Gray, F.E.S. 



IV. " The Differential Equations of Fresnel's Polarisation-Vector, with 



an Extension to the Case of Active Media." By James 

 Walker. Communicated by Professor E. B, Clifton, F.E.S. 



V. "On a Convenient Terminology for the Various Stages of the 

 Malaria Parasite." By Professor E. Bay Lankester, F.E.S. 



March 13, 1902. 



Sir WILLIAM HUGGINS, K.C.B., D.C.L., President, in the Chair. 



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

 ordered for them. 



The Croonian Lecture, " On Certain Chemical and Physical Pro- 

 perties of Haemoglobin," was delivered by Professor A. Gamgee, F.E.S. 



