264c Scientific Intelligence. 



sioinhoei (new, this large species is said to be closely related to 

 the Lower Devonian D. rugosus), Phacops shanensis (new, a 

 large form). 



This formation lies unconformable above the Ordovician 

 Naungkangyi beds (the Nambsim sandstones are not present in 

 the same area with the Zebingyi beds). Reed clearly recognizes 

 the Hercynian aspect of the fanna, and the "lithological and 

 stratigraphical type of development," but is perplexed over the 

 presence of Silurian graptolites, probably because they have 

 been determined for him by a specialist, Miss Elles. The evi- 

 dence of the other fossils, however, is so convincing that the 

 Zebingyi formation must be referred to the Lower Devonian, 

 and is directly comparable with the Bohemian black limestone 

 fauna (Fl) of the Konieprussian. c. s. 



6. A Summary of the Geology of India; by Ernest W. 

 Veedenbueg. 67 pp., Calcutta, 1907. (Printed by Thacker,- 

 Spink & Co.) This booklet gives a short but clear account of the 

 main geological events throughout the Indian Empire. It should 

 be in the hands of all teachers of general geology. It can be 

 had of Geo. E. Stechert & Co., New York City, for eighty cents. 



c. s. 



7. Die Fossilen Inseeten ; von Anton Handlirsch. — The 

 seventh and eighth Lieferungen of this monograph, published by 

 W. Engelmann, Leipzig, have been received. The former has 

 the remainder of the annotated catalogue, with bibliography of 

 Tertiary insects, on pages 961-1092. The Quaternary insects 

 are similarly treated, but only a portion appear in this part, on 

 pages 1093-1120, the remainder embracing pages 1121-1140 of 

 the eighth part. The latter part (pp. 1141-1280) also contains 

 several important chapters of comprehensive and general char- 

 acter. Another part will probably conclude this handbook. 



c. s. 



8. Evolution of Mammalian Molar Teeth to and from the Tri- 

 angular Type ; by Henry Fairfield Osborn, Sc.D., LL.D., D.Sc. 

 Edited by W. K. Gregory, M.A. Pp. vi, 250. New York, 1907 

 (The Macmillan Company). — This admirable volume consists of a 

 series of reprints of the various articles which the author has writ- 

 ten upon the mammalian molar teeth, together with new chapters 

 on the ordinal types of molars, the evolution of the premolars, and 

 a judicial discussion of the theories concerning the development 

 of the molar teeth, — those of the author and of others who oppose 

 his views. Aside from its main purpose, the book is of great 

 value to the student as a text-book of mammalian odontology, 

 being accurate in description and rich in illustrations. A very 

 full bibliography completes the volume. R. s. l. 



9. Mineral Resources of the United States, Calendar Year 

 1906. Pp. 1307. Washington, 1907. U. S. Geological Survey, 

 George Otis Smith, Director. — The annual volume on the min- 

 eral production in the United States, announced in the last num- 

 ber (p. 156), has now been distributed. This volume is the 



