[Bimonthly. Text and illustrations on p. 2-4 of cover.]
Notes:
[Bimonthly. Text and illustrations on p. 2-4 of cover.] * For Sale by Superintendent of Documents. Paper, 5c single copy, 25c a yr.; foreign subscription, 45c.
Availability:
* For Sale by Superintendent of Documents. Paper, 5c single copy, 25c a yr.; foreign subscription, 45c.