Description
Published:Began with: Vol. 1, no. 1 1912 and ceased with no. 433, May 1933.
Item Description:Some numbers in revised editions.
Occasional issues may lack title.
Some numbers issued also as its Report 1915/16- ; filmed only with the Report (Micro film S 787).
Physical Description:volumes : illustrations ; 23-24 cm
Publication Frequency:Monthly
ISSN:0093-0199