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and one who enjoyed the friendship of all the great leaders in the move- 

 ment — Huxley, Hooker, Scrope, Wallace, Lyell, and Darwin. Of those 

 who were on terms of affectionate intimacy with both Charles Lyell 

 and Charles Darwin, Professor Judd is perhaps the unique survivor. 

 It is this intimate personal relationship to the chief actors in the great 

 drama, combined with a peculiarly simple and graceful style of writing, 

 which makes the fascination of this little book. At every turn of the 

 page the reader is surprised by the reference to some remark of Lyell, 

 Darwin, or Huxley, which sheds a flood of light upon the psychology of 

 the whole movement. 



The great success of the Principles of Geology seems in some 

 measure to have been due to LyelPs study of the causes of failure of 

 the Theory of the Earth by the illustrious Hutton, whose death occurred 

 the year Lyell was born. On the basis of his extended observations, 

 Hutton as early as 1785 wrote the oft-quoted, "I can see no evidence 

 of a beginning, and no prospect of an end," a blunt statement which 

 antagonized the church, then especially active in hunting heresy. 

 Furthermore, his work was written in a heavy and cumbrous style. 

 Profiting by this example, Lyell schooled himself in graceful, accurate, 

 and forceful expression, and at some pains and with favoring fortune 

 was able to avoid a clash with the established church. In no small 

 measure this was due to an extremely favorable notice of his Prin- 

 ciples in the Quarterly Review, then the champion of orthodoxy. With 

 the geologists of the official Geological Survey, Lyell was less fortunate, 

 and in spite of the general popularity of his epoch-making ideas, they 

 were bitterly fought by the official class of geologists and only slowly 

 won support in this field. Professor Judd's fascinating story of the 

 coming of evolution should find a wide circle of readers, especially among 



students of natural science. 



W. H. H. 



North American Index Fossils: Invertebrates. By Amadeus W. 



Grabau and Hervey Woodburn Shimer. Vols. I and II. 



New York: A. G. Seiler & Co., 1909 and 1910. 

 With the rapid accumulation of special literature in the field of 

 systematic paleontology, and the growing inaccessibility of many of 

 the older works except to those having access to large libraries, it is 

 ever becoming more and more difficult for the non-specialist to identify 

 his species of fossils. At the same time, with the growing refinements 

 in stratigraphy, it is ever becoming more important to the stratigraphic 



