Sign@l - XXXVII JAR Distinguished Lecture: Ann Sthal on Africa in the World, plus The MP-UP Transition in China, Seriating San Diego Tombs & Calabrians in Australia:Book Reviews. Lawrence B. Conyers. Interpreting Ground-Penetrating Radar for Archaeology, 2012. Arnold Aspinall, Chris Gaffney, and Armin Schmidt. Magnetometry for Archaeologists, 2008. Armin Schmidt. Earth Resistance for Archaeologist, 2013