1. The genus Crepis;Babcock;Bibliographia genetica,1930
2. The attachment of chromosomes at the reduction division in flowering plants;Belling;Jour. Genetics,1927
3. Der Zusammenhang zwischen den Chromosomen und Mutationen bei Oenothera Lamarckiana;Boedijn;Recueil trav. bot. néerland.,1925
4. Chromosome linkage and syndesis in Oenothera;Catcheside;Trans. roy. soc. Edinburgh,1930
5. Chromosome arrangement during meiosis in certain oenotheras;Cleland;Amer. Nat.,1923