SCIENTIFIC LITERATURE. 



851 



its treatment of the various groups. This 

 volume is unfortunately devoid of the latter 

 qualification, but does contain a number of 

 reproductions from actual photographs of 

 the living forms ; some of them actually very 

 good and others very bad, but all of them 

 remarkably good when one considers the 

 great difficulties in the way of photograph- 

 ing the living animal in its native woods. 

 These pictures and Dr. Shufeldt's facility in 

 presenting scientific facts in a readable and 

 entertaining form no doubt help to justify 

 the book. 



The State Geologist of Indiana, W. S. 

 Blaichley, informs us, in his Twenty-first An- 

 nual Report of the Department of Geology 

 and Natural Resources, that abandoning, for 

 the most part, " the unscientific method of 

 county surveys, which is impeded by artifi- 

 cial boundaries having no relation to geo- 

 logical conditions," he has adopted that of 

 taking up each of the great natural resources 

 of the State, and preparing a monograph 

 thereon, based upon actual field investiga- 

 tion. The present report contains papers 

 by him and his assistants upon the natural 

 resources of the State, the petroleum indus- 

 tiy, composition of coals, the Black Slate or 

 Genesee Shale of New Albany, Indiana Caves 

 and their Fauna (finely illustrated), the Geol- 

 ogy of the Middle and Upper Silurian Rocks 

 of Clark, Jefferson, and neighboring coun- 

 ties, the Bedford Oolitic limestone (the fa- 

 mous building stone), natural gas, mines, oils, 

 the geology of Vigo County, and the unculti- 

 vated ferns, fern allies, and flowering plants 

 of the same county. The report is illustrated 

 by maps and plates. 



A lecture on The Protestant Faith, or Sal- 

 vation by Belief, read on various occasions 

 before the Young Men's Christian Union by 

 Divight Hinckley Olmstead, is published by 

 G. P. Putnam's Sons, with an introduction 

 on the Limitations of Thought. It is a criti- 

 cism of the Protestant principle of freedom 

 in thought, and maintains that belief is in- 

 voluntary, and therefore compulsory. 



In preparing the second edition of his 

 book on The Psychical Correlation of Re- 

 ligious Emotion and Sexual Desire, the au- 

 thor, Dr. James Weir, has incorporated in it 

 a considerable amount of additional evidence 

 in support oi his theory, has verified all ref- 



erences, has endeavored to eliminate un- 

 necessary material, and has divided the work 

 into three parts. He has also added to the 

 volume several other essays in which psy- 

 chical problems are considered. Of the 

 main work, the first part relates to the origin 

 of religious feeling, which is believed to 

 have been first material and prompting to 

 propitiatory offerings. The second part is 

 devoted to Phallic Worship, which, the au- 

 thor argues, dates from a very early period, 

 has been universal, and has survived, even 

 in some parts of Europe, in one form or 

 another, to a very recent period ; and the 

 general subject, as defined in the title of the 

 book, is treated in the third part. Dr. Weir's 

 theory was first announced in a medical 

 journal in New York in 1894; the first edi- 

 tion of this book was printed in June, 1897, 

 and the second edition was all written and 

 in the hands of the publishers in August, 

 1897 — all before another book on the same 

 subject appeared, in October, 1897. 



The King's Daughter and the King's Son, 

 " a fairy tale of to-day," by Agatha Archer, 

 was written, as we learn from the title-page, 

 by a King's Daughter in the summer of 1896. 

 It declares its part to be " to conspire with 

 the new works of new days." It presents 

 subjects of vital social relations from a new 

 point of view, and aims to enforce the pre- 

 cept that women should be given time and 

 opportunity before marriage to understand 

 clearly what marriage means to them. (Fow- 

 ler & Wells Company, publishers. Price, $1.) 



Physical Problems and their Solutions, 

 by A. Eourgougnon (D. Van Nostrand Com- 

 pany's Science Series), presents a number of 

 problems classified under the headings corre- 

 sponding to the different divisions of physics 

 to which they are related, and prefaced by 

 such explanations as render their meaning 

 clearer ; also problems which have been 

 set at examinations by the University of the 

 State of New York. The solutions of some 

 of the problems are given, and in cases 

 where similar problems have already been 

 treated, references to such solutions have 

 been made. 



The author, D. K. Tcnney, of a paper 

 entitled The Cooling Universe Refnted : the 

 Earth not Born of the Sun, aiming to awaken 

 inquiry on the subjects treated of, seeks to 



