[Reprint of pt. 8 of W. B. circular M, Instructions to marine meteorological observers, 6th edition Jan. 1938.]
Notes:
[Reprint of pt. 8 of W. B. circular M, Instructions to marine meteorological observers, 6th edition Jan. 1938.] * For Sale by Superintendent of Documents. Paper, 5c.
Availability:
* For Sale by Superintendent of Documents. Paper, 5c.