1. The distribution of chromosomes in tetraploid Daturas;Belling;Americ. Naturalist,1924
2. Methods of inducing doubling of chromosomes in plants by treatment with colchicine;Blakeslee;Journ. of Heredity,1937
3. Selbststerilität und Kreuzungssterilität im Pflanzenreich und Tierreich;Brieger;Berlin,1930
4. The induction of tnploidy through hybridization;Brittingham;American Naturalist,1936
5. Pollen-tube growth in crosses between balanced chromosomal types of Datura stramonium;Buchholz;Genetics,1929