THE MICROSCOPE. 175 



broader morphological basis upon which structural anatomy at 

 present rests. An appendix devoted to microscopical technology 

 supplies detailed instructions concerning the important methods 

 of work, a mastery of which is essential for every one proposing 

 to undertake histological investigation; the author's extended and 

 varied experience renders his suggestions often of especial 

 value. 



The illustrations of the book will be found particularly inter- 

 esting, since the author has accomplished the no inconsiderable 

 task of preparing new r and original drawings for the entire field 

 of normal histology. With few exceptions the drawings are 

 based upon camera lucida sketches or photo-micrographs, and 

 as far as possible represent human tissues; while retaining suf- 

 ficient diagrammatic clearness to render them thoroughly effi- 

 cient as aids in comprehending the descriptions of the text, they 

 are faithful likenesses of the actual structures. 



The Psychic Factors of Civilization. By Lester F. Ward. Boston. 

 Ginn & Company, 1893. Svo. Cloth, 369 pag< s. By mail, post- 

 paid, 82.00. 



This work, like its predecessor, Dynamic Sociology, makes a 

 bold advance into philosophy. It is not too much to say that 

 it deals with the most important questions before the world and 

 brings out some startling results. It shows that, notwithstand- 

 ing the amount of attention that has been devoted to mind, the 

 leading truths connected with its origin and development have 

 been overlooked. It also shows that the true influence of mind 

 in human history and civilization is little understood, and that 

 its existence as a factor in political economy and social science 

 has been deliberately ignored. The object of the book is to pre- 

 pare the way for a social science based omnind, and to foreshadow 

 a new political economy that shall recognize man as a rational 

 being. In a word, it is a powerful protest against the sterile 

 philosophy and dismal economics that have so long prevailed, 

 and is itself a philosophy of hope based on faith in the efficacy 

 of rational scientific action. 



The work is embelished with a fine array of quotations, mot- 

 toes, and literary gems, so that it is almost an anthology of the 

 subject. It is also provided with an annotated list of authors 

 and titles, and a copious index. 



