Copy of An article written by Allie Vibert Douglas entitled "The Cyanogen Band Near ? 4200 in the Spectra of Three Cepheid Variables," reprinted in booklet form from the Monthly Notices of R.A.S., Vol. XC., No. 9. This copy gifted to George Vibert Douglas by sister Allie Vibert Douglas.
An article written by Allie Vibert Douglas entitled "Between the Stars," potentially missing its original cover. Features a more substantial than usual handwritten inscription to George Vibert Douglas from Allie Vibert Douglas.