364 Transactions of the Js^ero- York Lyceum. 



Dr. Torrey read a report an the ceraphron destructor, a 

 parasitic animal that preys upon the cecidomya destructor, 

 and which has been supposed erroneously to be injurious to 

 wheat. 



A communication was received from Dr. S. P. Hildreth 

 on a species of Spatularia from the Ohio, supposed to be 

 new. 



A valuable donation of Scientific books received from Mr. 

 J. Eastburn. 



President Mitchill presented a description and specimen 

 of a new species of Scomber, which he named S. quhiqut 

 aculeatus. 



A donation was received from Dr. Hosack of a splendid 

 copy of Wilson's Ornithology in 9 vols. 



Mr. Barnes read an Essay on the Geology of the region 

 around New Lebanon. Published in No. XI this Journal- 



The Rev. Mr Schaeffer read a paper on a fossil bone 

 (head of the tibia) of a mammoth found in Lancaster Co. 

 Penn. Ten large bones were found, but most of them were 

 too much decomposed to be preserved. 



Mr. Halsey read a paper on the cheirostemon pentadac- 

 tylon of Humboldt. 



Mr. Barnes read a paper on a new species of bivalve mo- 

 lusca, found by Mr. J. Cozzens near New-Orleans, and 

 which Mr. B. names Mytilus Striaius. 



Dr. Torrey communicated a locality of cyanite, discover- 

 ed on the island of New- York, by Mr. J. Cozzens. This 

 mineral had not before been observed in the vicinity of 

 New-York. 



A drawing atid description of the Balenopterus acuto-ros- 

 tratus was presented by Dr. Dekay. This animal was taken 

 off Sandy Hook, and exhibited as a curiosity in this city. 



Mr. Barnes read an Essay on the Genera Unio and Alas- 

 modonta. Pub. in No. XIII this Journal. 



Dr. Van Rensselaer read an Analysis of Dr. J. W. Web- 

 ster's Work on the Geology of the Azores, accompanied by 

 Observations on the Lavas and Pumices of the Lipari Isl- 

 ands, in the Mediterranean. 



Dr. Torrey read a description and analysis of a new min- 

 eral from Richmond Mass. It is nearly a pure Hydrate of 

 Alumine, and is named Gibbsite, in honor of a distinguished 

 American Mineralogist. Pub. in the New York Med. and 

 Phys. Journal. 



