250 Scientific Intelligence. 



3. An Illustrated Flora of the Northern United States^ Can- 

 ada, and the British Possessions, from Newfoundland to the 

 Parallel of the Southern Boundary of Virginia, and from the 

 Atlantic Ocean westward to the 102d Meridian; by Nathaniel 

 Lokd Brittox, Ph.D., Emeritus Professor of Botany in Colum- 

 bia University, and Director in Chief of the New York Botanical 

 Garden, and Hon. Addison Brown, President of the Torrey 

 Botanical Club. The descriptive text chiefly prepared by Pro- 

 fessor Britton, with the assistance of specialists in several groups ; 

 the figures also drawn under his supervision. In three volumes. 

 Vol. II. Portulacacere to Menyanthacea?. Portulaca to Buck- 

 bean. Charles Scribner's Sons. 1897. 



The first volume of this work has been already noticed in this 

 Journal. To what was then said, nothing need now be added in 

 regard to the second volume, except further congratulations to 

 the authors on their success in giving to Botanists a useful treatise 

 at a very reasonable price. They maintain in the present volume 

 the high character of typographical execution which made the 

 first volume so attractive. The work is progressing steadily ; 

 the final volume being promised for early winter. g. l. g. 



4. Guide to the Genera and Classification of the North Ameri- 

 can rthopt era found north of Mexico ; by Samuel H. Scudder. 

 (Cambridge, Edw. H. Wheeler), pp. 1-89, 1897. — This conve- 

 nient little set of tables for the identification of Orthoptera was 

 prepared for the use of students, and. is but preliminary to a 

 fuller general work on the classification of the group. Although 

 containing references only to data already published or about to 

 be published, the tables include nearly two hundred genera. 



5. Das Tierreich. Eine Zasammenstellung und Kennzeichnung 

 der rezenten Tierformen. 1 Lief Aves. Redakt., A. Reichenow. 

 JPodargidce, Caprimidgidce u. Macropterygidce ; bearb. von 

 Ernst Hartert, pp. 1-98, figs. 1-16. Berlin, 1897. (R. Fried- 

 lander & Sohn.) 



II. Miscellaneous Scientific Intelligence. 



1. American Association for the Advancement of Science. — 

 The forty-sixth meeting of the American Association was held at 

 Detroit, from August 9 to 14. The President of the meeting was 

 Dr. Wolcott Gibbs of Newport. The senior vice-president, Prof. 

 Theodore Gill of Washington, who took the place of the retiring 

 president, the late Prof. E. D. Cope, delivered an able address 

 upon Prof. Cope's life and work. Addresses were also delivered 

 by the vice-presidents of the several sections. Nearly three hun- 

 dred members and associates were in attendance. The list of 

 papers was considerably larger than at the last meeting. The 

 fact that the British Association was to assemble at Toronto on 

 August 18 gave especial interest to the occasion. 



The place selected for the next meeting of the Association — its 

 fiftieth anniversary — is Boston and Prof. F. W. Putnam was 



