164 PROCEEDINGS OF THE AMERICAN ACADEMY 



of these sciences ; and it should receive the encouragement and sup- 

 port of learned societies, seminaries of learning, and scientific men 

 throughout the United States." 



By a resolution, the Committee of Publication was author- 

 ized and directed to prepare, and append to the current vol- 

 ume of the Memoirs, a list of the present Fellows and Hon- 

 orary Members of the Academy. 



Mr. Everett presented some papers from Professor Mitchell, 

 of Cincinnati, describing his machinery for recording the ob- 

 served motions of the heavenly bodies. Professor Peirce and 

 Dr. B. A. Gould made some comments upon it. 



Dr. C. T. Jackson desired a correction to be made in the 

 printed Proceedings of the Academy, under date of January 

 2d, namely, that the discovery of the almost universal pres- 

 ence of oxide of manganese in the water of streams, c^'c, 

 should be ascribed to his assistant, Richard Crossley, Esq. 



Dr. Jackson also exhibited specimens of tellurium, from 

 Virginia, discovered by him in connection with the gold 

 ores from that locality. 



Dr. Pickering made a communication on the length of the 

 year, according to the Egyptian cycle. From various sources, 

 which were specified, he had deduced the following table of 

 the Egyptian computation of time, viz. : — 



" That 30 years make a panegyry ; 



" 22 panegyrics make a phoenix ; and 



" 2\ phoenixes make the great year, or the Sothic Cycle." 



Professor Wyman exhibited some crania of the Enge-eria 

 (Troglodytes Gorilla, Savage), and made additional observa- 

 tions on its structure and relations, based on the examination 

 of two skulls' recently brought from Cape Palmas, by Dr. 

 George A. Perkins. Contrary to the views of Professor Owen, 

 Professor Wyman would rank the animal below the Chimpan- 

 zee, on account of the greater development of the intermax- 

 illary bones, the comparatively smaller capacity of the cranium, 

 and the conformation of the teeth, especially of the denies 

 sapiential. 



