Biological Lectures and Addresses. By Arthur Mines Marshall. (David Nutt.)—The
late Professor Marshall had certainly the gift of expounding problems in biology in clear language and with, forcible illustration. Some of these lectures are really admirable reading ; those on "Animal Pedigrees," "Influence of Environment on the Structure and Habits of Animals," and "Inheritance," are particularly good. Perhaps as a critic of Darwin, and when discoursing on the developments of the Darwinian Theory, we see Professor Marshall at his best. (We understand from the preface that a separate volume of Lectures
on the Darwinian Theory will be published shortly.) Students of zoology and biology cannot do better than read these chapters ; they are lucid and attractive in style, and they show a compre- hensive grasp of these problems which, baffling and profound as they appear to us, deserve not only our utmost energies of research, but to be approached in a broad, scientific spirit. There can be no doubt that the late Professor Marshall had this broad view of some of the great theories, and a valuable possession It was. Many a good worker has lacked it, and Bo missed great truths and their meaning.