Front matter
Reading edition

Published by the Carnegie Institution of Washington Washington, December 1923
CARNEGIE INSTITUTION OF WASHINGTON Publication No. 329
Paper No. 35 of the Department of Genetics
JUDD & DETWEILER WASHINGTON
Reading edition

Published by the Carnegie Institution of Washington Washington, December 1923
CARNEGIE INSTITUTION OF WASHINGTON Publication No. 329
Paper No. 35 of the Department of Genetics
JUDD & DETWEILER WASHINGTON