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
Original drawings of chromosomes labeled "fig. 8 sc 9" and handwritten notes on the "Arrangement of loci in normal X-chromosome and in that containg scute-8 inversion" by Herman 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