Lemke et al: Physical Geography Laboratory Manual is a comprehensive introductory manual for students without a previous science background. An abundant set of 21 exercises assures that every professor will find a complete set of preferred labs for a semester-long course. Lemke/Ritter/Heywood wrote this lab manual in order to provide equal coverage of the four spheres of the environment�the atmosphere, biosphere, hydrosphere, and lithosphere. The lab manual was written independent of any specific textbook and will work with available physical geography texts.