title: Rates of Spontaneous Mutation in the Second Chromosomes of the Sibling Species, Drosophila Pseudoobscura and Drosophila Persimilis.
authors.affiliation: Department of Zoology, Columbia University, New York.
authors.forename: T
authors.initials: T
authors.lastname: Dobzhansky
authors.forename: B
authors.initials: B
authors.lastname: Spassky
authors.forename: N
authors.initials: N
authors.lastname: Spassky