105 



claim for biology or botany and also, as to what we must grace- 

 fully yield as wholly beyond high school possibilities. 



Jean Broadhurst 



Professor C. S. Gager has an illustrated article on some phys- 

 iological effects of radium rays in the American Naturalist for 

 December, 1908. 



The March Bulletin of the Torrey Botanical Club has a study 

 of winter buds with reference to their growth and leaf content 

 by Emmeline Moore. This interesting article is illustrated with 

 growth curves and many line drawings of bud sections. The 

 same number contains also an article on some aspects of the 

 mycorhiza problem by Benjamin C. Gruenberg. 



l:\it Journal of Biological Chemistry iox December, 1908, con- 

 tains an article on Ibervillea Sonorae, specimens of which are 

 growing in the New York Botanical Garden. The authors, Miss 

 Julia T. Emerson and Mr. WilHam W. Walker, discuss the plant's 

 chemical composition and its toxicity. One swollen stem that 

 has been lying on a board in a museum case since 1902 still 

 sends up yearly shoots bearing leaves and tendrils. 



The parasitic fungi of Aleyrodes citri, a serious scale pest of the 

 orange groves in Florida and other southern states, have been 

 recently fully described and illustrated by Mr. Howard S. 

 Fawcett, of the Florida Agricultural Experiment Station ; the 

 study was made from an economic standpoint, for the " greatest 

 success in the use of fungi to combat insect pests seems to have 

 been attained in Florida, where proper conditions of temperature 

 and moisture are present." 



The Botanical Gazette for January, 1909, has an illustrated 

 article by Robert Greenleaf Leavitt on homoeosis, in which is 

 discussed the translocation of characters, such as abscission from 

 the petiole to the petiolules in the horsechestnut, the subdivision 

 of the pinnae as in the frond as a whole in the Pierson and other 



