PHILOSOPHICAL TRANSACTIONS 
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OF TIIE 
ROYAL SOCIETY OF LONDON. 
Series A, Vol. 221. Pp. 73-115. 
[Plates 2-5.] 
INVESTIGATIONS ON LIGHTNING DISCHARGES AND ON THE 
ELECTRIC FIELD OF THUNDERSTORMS. 
BY 
C. T. Pv. WILSON, F.R.S., 
‘ ( 
READER IN ELECTRICAL METEOROLOGY IN THE UNIVERSITY OE CAMBRIDGE AND OBSERVER IN 
METEOROLOGICAL PHYSICS AT THE SOLAR PHYSICS OBSERVATORY, CAMBRIDGE. 
Printed and Published for the ROYAL SOCIETY by 
HARRISON AND SONS, Ltd., 44-47, ST. MARTIN’S LANE LONDON, W.C. 2. 
Printer* tn «9rifut»r» to !§t£ iflajerii;. 
1920. 
A 584. 
27.8.20 
