The present subvolume was assigned to other editors than those of the first part, which may also serve to explain the delay in publication. The compilation of a volume on insulin for the Handbook of Experimental Pharmacology appeared to us an enticing task, for two reasons in particular. Insulin has now been in use for 50 years and can be classified among the old- established and almost sacrosanct drugs; for this very reason the knowledge of this hormone, its mode of action, and quality of effect demands special attention. No limitation on its use can yet be foreseen. Recent work on the...