A textbook or reference for applied physicists or mathematicians; geophysicists; or civil, mechanical, or electrical engineers. It assumes the usual undergraduate sequence of mathematics in engineering or the sciences, the traditional calculus, differential equations, and Fourier and Laplace transforms. It explains how to use those and the Hankel transforms to solve linear partial differential equations that are encountered in engineering and sciences. No date is noted for the first edition; the second includes numerical methods and asymptotic techniques for inverting particularly complicated transforms.