124 Scientific Intelligence. 



attention in Europe in recent years. The essentials of this theory- 

 are that every living cell has an " organic memory," and that the 

 development of the embryo is " actually and literally a habit," 

 with " the more repetitions the more fixity." " In short, what 

 habit is for individual life that is heredity for racial life." That 

 there should be a physical basis for the hereditary mechanism is 

 not considered important ! w. r. c. 



22. A Bibliography of the Tunicata, 1469-1910 ; by John 

 Hopkinson. Pp. xii, 288. London, 1913 (The Ray Society). — 

 This is a companion to the three volumes of the beautifully illus- 

 trated monograph of the British Tunicata published by the Ray 

 Society since 1904 (see notices in this Journal). It contains a 

 remarkably complete list of the publications which relate to this 

 group of animals. Not only are all the technical and special 

 papers included, but also the references in textbooks and in other 

 articles dealing with each of the several branches of biology . 



W. R. C. 



23. The British Parasitic Copepocla : Copepoda Parasitic on 

 Fishes ; by Thomas Scott and Andrew Scott. In two volumes: 

 Vol. I, text, pp. xi, 252, with 2 plates; Vol. II, plates I to LXXII. 

 London, 1913 (The Ray Society). — In Dr. Brady's monograph on 

 the free and semi-parasitic Copepoda, published by the Ray Soci- 

 ety more than thirty years ago, the forms parasitic on fishes were 

 excluded as requiring treatment in a separate volume. The work 

 on these forms has now been completed. The treatise consists of 

 a general account of the structure and habits of this important 

 group of parasites, with full descriptions of the 113 species known 

 from the region covered by the monograph. All of these species 

 are illustrated with anatomical details, and most of them are 

 shown in natural colors in the 72 plates of the second volume. 



w. R. c. 



24. The Weathering of Aboriginal Stone Artifacts, JVo. 1: 

 A Consideration of the Paleoliths of Kansas ; by N. H. Win- 

 chell. Pp. xiv, 186 ; 20 text figs., 19 plates. Collections of the 

 Minn. Hist. Soc, vol. xvi, part I. St. Paul, Minn., 1913.— The 

 author believes he has found a sequence of six cultures just south 

 of the Kansas moraine in Kansas. His classification comprises 

 early paleolithic, paleolithic, early neolithic (2 stages), and neo- 

 lithic (2 stages). The term paleolithic is applied to the culture 

 that antedated the Kansan Glacial epoch. Early neolithic covers 

 the period between the Kansan and Wisconsin Glacial epochs, and 

 neolithic aj>plies to post-Wisconsin culture. This classification is 

 based on the form and patination of the artifacts. 



george grant maccurdy. 



Obituary. 



Dr. Anton Fritsch of Prague, director of natural history in 

 the Royal Bohemian Museum and professor of zoology in the Uni- 

 versity, died on November 15 at the age of eighty-one years. 



Dr. Henry Potonie, well known for his work in botany and 

 paleobotany, died on October 28 in the fifty-sixth year of his age. 



