TY  - JOUR
T1  - Investigation of Atmospheric Electrical Variations at Sunrise and Sunset
JF  - Proceedings of the Royal Society of London. Series A, Containing Papers of a Mathematical and Physical Character (1905-1934)
VL  - 92
IS  - 642
SP  - 401
EP  - 408
PY  - 1916/07/01/
UR  - http://dx.doi.org/10.1098/rspa.1916.0025
M3  - doi:10.1098/rspa.1916.0025
AU  - Nichols, E.
ER  -