Draft of "On the calculation of number of loci separately producing a given recessive phenotype" with handwritten corrections by Hermann J. Muller, c.1940
The Effect of a Long Established Duplication on the Frequency of Detectable Mutation typed original drafts, and copies of article written in the USSR with handwritten corrections and chromosome maps by Hermann J. Muller
Typed copy of "The Cytogenetic Resolution of the Ultra-Fine Structure of a Restricted Portion of a Drosophila Chromosome" by H.J. Muller and A.N. Prokovyeva with handwritten corrections by H.J. Muller
