Full text not available. This article's full text was not recovered in the archive. The citation and links above point to the published record. Related research New Host-strains for the Lysogenic Corynebacterium diphtheriae Park Williams No. 8 Strain Journal of General Microbiology · 1968 Production of Plant Growth Substances by Azotobacter chroococcum Journal of General Microbiology · 1968 Books Received Journal of General Microbiology · 1968 Next article in this issue →New Host-strains for the Lysogenic Corynebacterium diphtheriae Park Williams No. 8 Strain