Nuclear phenomena associated with heterothallism and homothallism in the ascomycete neurospora, pagine 289 à 305.

Washington D. C., Government Printing Office, 1927 ; 148 x 231 mm, 20 pp. + 2 pl. hors-texte (dont 2 recto verso), couverture et cahier agrafés. Tiré à part, en langue anglaise. Journal of Agricultural Research - Department of Agriculture (Reprint from) Vol. XXXV, No. 4, August 15, 1927. Bon état.