312 Scientific Intelligence. 



takes up Roman history from its beginning to 366 B. C. (chapters 

 I and II). The third chapter (366 to 133 B. C.) carries Rome to 

 its position as the controlling power of the Mediterranean, while 

 the fourth and fifth chapters extend to the close of the Republic 

 (133-30 B. C.) and on to the Empire (30 B. C. to 395 A. D.). 



The closely printed pages of this remarkable volume contain an 

 almost bewildering mass of information, systematically arranged ; 

 the scope of this can only be appreciated by a detailed study of 

 the whole. It is truly noteworthy that so soon after the end of 

 the World War it has been possible to bring out in Germany so 

 exhaustive a work. 



8. Observatory Publications.— Publications of the Leander 

 McCormick Observatory of the University of Virginia; S. A. 

 Mitchell, Director. 1921. Vol. II, part 5. Pp. 157-164.— 

 First stellar parallax measures (reprinted from the Astrophysical 

 Journal, 42, 263-270, 1915). Vol. II, part 7, pp. 201-268. This 

 includes 349 parabolic orbits of meteor streams and other results. 



Publications of the Washburn Observatory of the University 

 of Wisconsin; George C. Comstock, Director. Vol. X, part 4. 

 Pp. 167. Observations of double stars, 1907-1919. Madison, 

 Wis. 1921. 



9. Tables and other Data for Engineers and Business Men. 

 Compiled by Charles E. Ferris, University of Tennessee. 

 Twenty-fourth edition; 160 pp. Knoxville, Term. (University 

 Press; price seventy-five cents). — This volume of engineering 

 tables, though small in size and modest in price, contains a large 

 amount of information of great value to the practical man. First 

 issued in 1905, and repeatedly noticed in these pages, it has now 

 reached its 24th edition. This fact alone testifies to the value 

 set upon it by those who use it. 



10. Bibliotheca Zoologica II. Verzeichnis der Schriften ueber 

 Zoologie welche in den periodischen Werken enthalten und 

 vom Jahre 1861-1880 selbstdndig erschienen sind; bearbeitet 

 von Dr. O. Taschenberg. Lieferung 25. Leipzig (Wilhelm 

 Engelmann.) — Parts 21 to 23 of this important work were noticed 

 in June 21, 1920 ; part 20 in July, 1921, and part 24 in January, 

 1922. Part 25 is now issued under the date of February, 1922 



(price 82 marks). It includes signatures 795-804, or pp. 6393- 

 6472. See No. 6 above. 



11. Mentally Deficient Children: Their Treatment and 

 Training; by G. E. Shuttleworth and W. A. Potts. Pp. 320. 

 Philadelphia, 1922 (P. Blakiston's Son and Company.) — This is 

 the 5th edition of an old standard which was first published in 

 1895. The authors have had impressive experience in the medical, 

 educational and administrative aspects of the problem of mental 

 deficiency, and they speak with authority. To American readers 

 the concrete references to the administration of the Mental 



