By Charles Franklin Craig, M.D., M.A. (Hon.), F.A.C.S., F.A.C.P., Col., U. S. Army (Retired), D.S.M., Professor of Tropical Medicine in The Tulane University of Louisiana, New Orleans, Louisiana and Ernest Carroll Faust, M.A., Ph.D., Professor of Parasitology in the Department of Tropical Medicine, The Tulane University of Louisiana, New Orleans, Louisiana. Octavo, 733 pages, illustrated with 243 engravings. Lea and Febiger, Philadelphia, Pa
The purpose of the book, as stated by the authors, is to serve as a “how-to-do-it” book on waveform analysis for medical personnel and engineering students. They emphasize a conceptual approach, replacing complex mathematical proofs with easy to understand diagrams, and attempt to “close the vocabulary gap between the engineer and the doctor.”
The book consists of five parts. Part I introduces the reader to examples of elementary waveforms and their basic functional forms, definitions of technical terms and examples of waveform selection. Part II provides an introduction to differential and integral calculus, the waveform inner product, fourier series, and a discussion of the application of fourier transforms and correlation techniques. Part III gives a method of extracting signals from noise with numerical examples of autocorrelation and cross-correlation and a detailed example of the estimation of lag time between two waveforms. Part IV is an introduction to the basic concepts of the analog computer and the use of orthogonal exponentials in the representation of waveforms.