1. The following publications are those referred to directly in the text. A full bibliography
2. appears on the accompanying microfiche numbered as in the second column. A photocopy is
3. available from the Royal Society Library at cost.
4. (1) 1949 An investigation into the possibility of observing streams of corpuscles from solar flares.
5. Mon. Not. R. Astr. Soc. 109 324-336.