The book presents the final version of a technique to perform the double-contrast barium enema examination of the colon, which has been thoroughly tested and proven in the field for more than 15 years of its application. It discusses the reasons for using this (the Genoa) technique, the indications for performing the double-contrast barium enema versus the single-contrast examination, the steps necessary to obtain a clear colon and the optimal barium sulfate suspensions to be employed. The book deals also with the barium enema examination in children and frankly discusses the relative merits of colonscopy versue DCBE.

A readable, informative, fascinating entry on each one of the 100-odd chemical elements, arranged alphabetically from actinium to zirconium. Each entry comprises an explanation of where the element's name comes from, followed by Body element (the role it plays in living things), Element ofhistory (how and when it was discovered), Economic element (what it is used for), Environmental element (where it occurs, how much), Chemical element (facts, figures and narrative), and Element of surprise (an amazing, little-known fact about it). A wonderful 'dipping into' source for the familyreference shelf and for students.