220 



THE AMERICAN NATURALIST. [Vol. XXXVI J. 



Reiche's " Flora de Chile," published at Santiago, has reached the 

 third volume, devoted to Cunoniaceae to Compositae-in-part. 



"Flora of New Providence and Andros (Bahama Islands)" is the 

 title of a paper by Mrs. A. R. Northrop, which forms the opening 

 number of Vol. XII of the Memoirs of the Torrey Botanical Club, 

 issued December ioth. 



In a thesis on "Die Stelar-Theorie," published at Groningen in 

 1902, Schonte reaches the conclusion that but a single stelar type 

 " Monostelie" occurs in the stem and root of vascular plants. 



A study of style and stigma in the Cruciferae, by Villani, is con- 

 tained in Malpighia, Vol. XVI fascicle 5 7. 



Recent numbers of the Bulletin du Museum J' His to ire Naturelle, 

 of Paris, contain a considerable number of morphologico-systematic 

 papers by Van Tieghem. 



Plant physiology in the high school is the subject of a paper by 

 Professor Barnes in School Science for December. 



The use of bacteria in studying photosynthesis is discussed by 

 Beijerinck in Vol. IV of the Proceedings of the Section of Sciences 

 of the K. Akademie van Wetenschaffen te Amsterdam, in which Burck 

 writes on the irritable stigmas of Torenia and Mimulus, and on 

 means to prevent the germination of foreign pollen on the stigma. 



Guignard contributes a paper on the double fertilization of Cruci- 

 fera to the Journal de Botanique for November, which also contains 

 the results of an anatomical study of Menispermaceae, by Maheu. 



A paper on neo-Lamarchian views as to organic evolution, by 

 von Wettstein, is separately issued from the 1902 Verbandlungen der 

 Gesellschaft deutschcr Naturferscherund Arzte. 



C. A. White contributes a discussion of the mutation theory of De 

 Vries to the Smithsonian Report for 1901. 



Mendel's law is discussed by Professor Spillman in the Popular 

 Science Monthly for January. 



Mendel's laws and their probable relations to intra-racial heredity 

 are discussed by Yule in recent numbers of The New Phytologist. 



Director, is published in the Popular Science Monthly for January. 



