Agincourt magnetic data 1899-1937 and the sunspot cycle.
Contributors: Royal Astronomical Society of Canada.; Ottawa. Dominion Obervatory.
Series: Dominion Observatory Reprint -- no. 35
Published: 1939
Place of publication: (Toronto)
Language: eng
Number of pages: 414
Notes: From the Journal of the Royal Astronomical Society of Canada. v. 33.