This book is a manuscript that was virtually complete when James W. Cornman died. Most of the chapters were in final form, and all but the last had been revised by the author. The last chapter was in handwritten form, and the concluding remarks were not finished. Swain took charge of the proofreading and John L. Thomas compiled the indices with the assistance of Lehrer. It is our opinion that this manuscript, like the other books Cornman published,...