Miscellanies. 193 



First Province, PSYCHONOMY. — I. Department, Glossology, in- 

 cluding Grammar and Languages. 11. Psychology, including Rheto- 

 ric, Logic, Phrenics, Ethics, and Education. IIL Nomology, inclu- 

 ding Law and Government, and Political Economy. IV. Theology, 

 including Paganism, Mahomedanism, Judaism, and Christianity. 



Second Province, ETHNOLOGY. — V. Geography, including Sta- 

 tistics, and Voyages and Travels. VI. Chronography, including Civil 

 History, Chronology, and Antiquities. VII. Biography, including Her- 

 aldry, Autographies, and Sphragistics. VIII. Callography, including 

 Poetry, Homance, and Miscellaneous Literature. 



Third Province, PHYSICONOMY.— IX. Mathematics, including 

 Descriptive and Analytic Geometry, and the Calculus. X. Acrophys- 

 ics, or Natural Philosophy, including Astronomy and Chemistry. XL 

 Idiophysics, or Natural History, including Geology. XII. Andro- 

 physics, or the Medical Sciences, including Surgery. 



Fourth Province, TECHNOLOGY.— XIII. Architechnics, or the 

 Arts of Construction and Conveyance. XIV. Chreotechnics, Agri- 

 culture, Manufactures, and Commerce. XV. Machetechnics, or the 

 Arts of War, by land and by sea. XVI. Callotechnics, or the Fine 

 Arts, exclusive of Poetry. 



MISCELLANIES. 



FOREIGN AND DOMESTIC. 



1. On the supposed conversion of Carbon into Silicon, as stated 

 to the Philosophical Society of Edinburgh, by Dr. Brown. See this 

 Journal, Vol. xLi, p. 20S. 



TO PROFESSOR SILLIMAN. 



J Dear Sir — You are already aware, that in the beginning of last sum- 

 mer, a paper written by Mr. Brown, and asserting as the result of a 

 series of experiments, the formation of silicon, and its consequent 

 identity with carbon, was presented to the Royal Society of Edin- 

 burgh by Dr. Christison. Notwithstanding the improbability of this 

 result, the high reputation of Dr. Christison as a chemist, and the belief 

 that he must have entertained a very favorable opinion of the scientific 

 acquirements of an experimenter whose conclusions, although of a 

 character so extraordinary, he was willing to introduce to the world, 

 impressed Dr. Mitchell of this city with the belief that the facts thus 

 brought before the public, inerited an examination, which might serve 

 either to detect their error or confirm their truth. As I understand that 

 you have expressed a desire to receive some account of the experi- 

 ments which he undertook for this purpose, in which I had the honor 

 Vol. xLii, No. 1.— Oct.-Dec. 1841. 25 



