X BIOLOGICAL SOCIETY OF WASHINGTON. 



OF North America, with exhibition of specimens, which was 

 followed by a long discussion, in which many members partici- 

 pated. 



Prof. L. F. Ward exhibited a Specimen of the Palo La 

 Cruz, or Wood of the Cross, obtained in Northern Brazil. 



Ninety-Seventh Meeting, October i6, iSS6. 



The President in the chair, and twelve members present. 



The Secretary read a letter from Dr. Basil Norris, U. S. A., 

 Spokane Falls, W. T., descriptive of the larval form of a species 

 oi Atnbly stoma ^ probably A. tigrina^ a specimen of which was 

 exhibited. 



Mr. F. H. Knowlton read a paper on Fasciation in Ra- 

 nunculus AND RuDBECKiA, exhibiting specimens of each of the 

 genera, and reviewing the different theories held by authors as to 

 the cause of this structure. Remarks upon the same subject 

 were made by Dr. Fernow, Prof. Ward, and Mr. Mann. 



Mr. J. B. Smith gave an account of an abnormal abundance 

 of Dynastes tityus, one of the largest of the American beetles, 

 and having an intensely disagreeeble odor. It occasionally oc- 

 curs in the District of Columbia, and ranges south and west from 

 there into Texas and Mexico.* 



Mr. F. W. True presented A Revision of the Genus La- 

 GENORHYNCHUS. He also exhibited an abnormally developed 

 hoof of a mule, which was curved and twisted like a ram's horn, 

 and a living specimen of the Alniiqui {Solenodon cubanus) 

 from Cuba, the largest known American Insectivore. 



NiNETY-EiGHTH MEETING, October 30, 18S6. 



The President in the chair, and ten members present. 

 Prof. Theodore Gill presented a communication on T^nioso- 

 Mous Fishes. t 



* 1887. Popular Science Monthly, xxx, pp. 409, 410, January. 

 tThe Characteristics and Relations of the Ribbon-fishes. <Ain. Nat., 

 V. 21, p. 86, Jan., '87. 



