1. The chemical breakage of chromosomes;Darlington;Heredity,1947
2. L'importance de la notion d'activité thermodynamique en toxicologie et en pharmacodynamie;Gavaudan;Rec. Trav. Scient. Stat. d'Ess. Bouchet,1945
3. The effect of colchicine on root mitosis in Allium;Levan;Hereditas,1938
4. Cytological reactions induced by inorganic salt solutions;Levan;Nature,1945