44 



secretary's annual report. 



The following papers were read before the Scientific 



Section during the season of 1883-84 : — 



November 7, 1883. 

 November 21, 1883. 



October 5, 1883. 



December 19, 1883. 

 January 2, 1884. 

 January 16, 1884. 



January 30, 1884. 

 February 13, 1884. 



February 27, 1884. 



March 12, 1884. 



March 26, 1884. 

 April 9, 1884. 



April 9, 1884. 



"The Gyroscope " C. B. Warring, Ph.D. 



"An Interesting Geological Locality at Corn- 

 wall, N. Y Prof. W. B. Dwight. 



"Description of two Species of Shark, Carcha- 

 roclon carcharias, and Odontaspis littoralis, 

 taken off Nantucket, Mass." 



W. G. Stevenson, M.D. 

 "Our Local Mammalian Fauna." 



W. G. Stevenson, M.D, 



"Uniformity of Climate in Past Geological Ages." 



C. B. Warring, Ph.D. 



"Saturn " Prof. Maria Mitchell. 



"Description of Cyclopterus lumpus, the first re- 

 ported specimen found in the Hudson River." 

 W. G. Stevenson, M.D. 

 "Laws of the Compressibility of Gases." 



L. C. Cooley, Ph.D. 

 "Embryonic Forms of Limulus polyphenols. " 



Prof. W. B. Dwight. 



"Gums and Resins" Mr. C. N. Arnold. 



"Evidence of Intelligence in Butterflies." 



James M. DeGarmo, Ph.D. 

 Papilio turnus (Linn), melanic var. (P. glaucus), 

 taken at Poughkeepsie, N. Y. 



W. G. Stevenson, M.D. 

 "On some New Laboratory Appliances." 

 "Influence of the Density of a Gas on the Elec- 

 tric Discharge." 

 "Notes on the Liquefaction of Gases." 



L. C. Cooley, Ph.D. 

 " Report of Progress in Geological Investigation 

 in the Vicinity of Poughkeepsie." 



Prof. W. B. Dwight. 

 "List of Birds, (genera and species), belonging to 

 the Vicinity of Poughkeepsie and represented 

 in the museum of the Institute." 



W. G. Stevenson, M.D. 

 " Microscopic Study of Rock-Sections ; Crystalliza- 

 tion of Gold, and Minute Fresh- Water Crusta- 

 ceans," exhibited repectively by — 



Mr. C. N. Arnold, Profs. Cooley and Dwight. 



