Sept. issue <1975-> contains directory of members..
Electronic reproduction. [S.l.] : HathiTrust Digital Library, 2010.
Master and use copy. Digital master created according to Benchmark for Faithful Digital Reproductions of Monographs and Serials, Version 1. Digital Library Federation, December 2002. http://purl.oclc.org/DLF/benchrepro0212
Official organ of the Washington Academy of Sciences.
Vols. 1-40, 1911-1950. 1 v.
Description based on print record.
Latest issue consulted: Volume 98, number 1 (Spring 2012) (biodiversitylibrary.org viewed May 23, 2017).