Tectonics and the Formation of Magmas

It is a pleasure to any author to enlarge the circle of his readers. Naturally this is a pleasure to me. At the same time, however, misgivings arise: whether these pages will con­ vey to the circle of new readers the thoughts that excite the author. Science is advancing rapidly in our day. It is already apparent that many things in the book should have been stated differently. I have tried to make...