163 



tion develops a withered and light grain. As many as three worms 

 were on one grain which he examined. The colour of the insect is a 

 bright yellow, the intestinal canal distinctly visible through the trans- 

 parent covering as a dark line. This has led some observers to the 

 conclusion, that it was marked with a brown stripe, but this is not 

 the case, the peristaltic motion of the canal being seen under the mi- 

 croscope. The variety of wheat known as " iMediterranean," grow- 

 ing in the same field, was free from the worm, which he attributed 

 to its hardening sooner than the white wheat. 



Judge Kane corroborated the statement of Mr. Justice, that 

 the variety of v^^heat termed " Mediterranean," appears to be 

 wholly or in a great measure exempt from the attacks of this 

 insect. 



The pending nominations were read. 



Stated Meeting, October 4. 

 Present, twelve members. 

 Dr. Patterson, President, in the Chair. 

 The following donations were announced: — 



FOR THE LIBRARY. 



Memoir on the Explosiveness of Nitre, with a view to elucidate its 

 agency in the tremendous explosion of July, 1845, in New York. 

 By Robert Hare, M.D. (Smithsonian Contributions.) Washing- 

 ton, 1849. 4to. — Fro7n the Author. 



The Plough, the Loom and the Anvil. Vol. III. No. 4. Oct. 1850. 

 Philadelphia. 8vo. — From the Editor, J. S. Skinner, Esq. 



The proceedings of the Trustees of the University at Nash- 

 ville, Tennessee, on the announcement of the death of Dr. 

 Troost, Professor of Chemistry, Geology and Mineralogy, in 

 the University, were read. 



Dr. Dunglison announced the death of Mr. Judah Dobson, 

 of Philadelphia, a member of this Society, who died on 26th 

 September last. 



The pending nominations were read. 



