8i6 



THE AMERICAN NATURALIST. [Vol. XXXVII. 



An analytical account of the higher groups, families and genera of 

 Mexican plants, by Conzatti, is in course of publication by the 

 Secretaria de Fomento of the City of Mexico, under the title "Los 



A dictionary catalogue, with annotation and illustrations, of the 

 economic plants of Porto Rico, by Cook and Collins, forms Part 2 of 

 the current volume of Contributions from the United States National 

 Herbarium. 



A brief popular account of "Vegetation in Greenland," with illus- 

 trations from herbarium material, is published by W. E. Meehan in 

 Floral Life for July. 



Part III of Cooke's "Flora of the Presidency of Bombay," com- 

 pleting the first volume, extends through the order Rubiaceae. 



As is customary with the Proceedings of the Linnean Society of New 

 South Wales, Part IV of Volume 27, recently issued, contains a 

 number of interesting papers referring to the Flora of Australia. 



Volume LXII of the Natuurkundig Tijdschrift voor Nederlandsch 

 Indie contains important papers by Koorders on the botany of the 

 Dutch Indies. 



The result? of evolutionary and physiological investigation of the 

 physiological role of mineral nutrients in plants, by Loew, is pub- 

 lished as Bulletin 45 of the Bureau of Plant Industry, U. S. Depart- 

 ment of Agriculture. 



A summary, by Pond, of MacDougal's Influence of Light and 

 Darkness upon Growth and Development, is separately printed 

 from the Monthly Weather Review for April. 



An extensive paper by Eberhardt on the respective influence of 

 dry and moist air on the form and structure of plants, is contained in 

 the Annates des Sciences Naturelles, Volume 18, Nos. 1-3, of the cur- 



The conclusion of Schulz's monograph of the genus Cardamine is 

 contained in Engler's Botanische fahrbiicher, Volume 32, Heft 4. 



Papers on Rubus and Crataegus, by Ashe, constitute the larger 

 portion of Part I of the current volume of the Journal of the 

 Elisha Mitchell Scientific Society. 



An Arceuthobium of Tsuga in the Northwest is named Razou- 



