VOL. XIII, PP. ix-xx MARCH 9, 1901 



PROCEEDINGS 



OP THE 



BIOLOGICAL SOCIETY OF WASHINGTON 



PROCEEDINGS. 



The Society meets in the Assembly Hall of the Cosmos Club 

 on alternate Saturdays at 8 p. m. Brief notices of the meetings, 

 with abstracts of the papers, are published in Science. 



January 14, 1899 sooth Meeting. 



The President in the chair and 32 persons present. 



W. H. Ashmead exhibited specimens of Chirodamus, a rare 

 South American wasp, three specimens of which had been found 

 in a collection presented to the National Museum by the U. S. 

 Fish Commission. 



Vernon Bailey described an interesting case of protective 

 coloration in Ochotona. 



C. L. Pollard exhibited photographs of the laboratory build. 

 ings of the New York Botanical Garden in course of erection. 



V. K. Chesnut exhibited photographs and fruits of the Cali 

 fornia laurel (Umbellularia calif arnica), a plant belonging to 

 the olive family, the leaves of which contain a volatile oil which 

 is distilled and used for medicinal purposes. The fruits are 

 greatly valued by the Indians as an article of food. 



The following communications were presented: 



C. L. Marlatt: A New Nomenclature of the Broods of the 

 Periodical Cicada.* 



*Bull. No. 18, New Series, Division of Entomology, U. S. Dept. of Agr., 

 Nov., 1898, pp. 52-58. 



