Observations on the formation and structure of bacterial cellulose

A. MOUNTER I95I interest for several reasons. It is the first cholinesterase of cold-blooded animals to be so identified; it occurs in a secretion, and not, as do other members of the class, in intimate association with structural elements of the cell; it is present in high activity in venoms whose neurotoxic properties are much in evidence. Much further work on this and the many other enzymes present in this secretionwill, however, be necessary before a clear understanding of their biological significance is attained. SUMMARY 1. The hydrolysis of choline and non-choline esters by cobra venom has been studied: all hydro- lysis is attributed to cholinesterase.