books.google.co.uk - The objective of the Springer Handbook of Enzymes is to provide in concise form data on enzymes that have been sufficiently well characterized. Data sheets are arranged in their EC-Number sequence. Usually each volume comprises one enzyme class, although sometimes the enzyme classes have to be divided...http://books.google.co.uk/books/about/Class_3_1_Hydrolases_IV.html?id=F-0y0w33FlQC&utm_source=gb-gplus-shareClass 3.1 Hydrolases IV