SMITHSONIAN CONTRIBUTIONS TO KNOWLEDGK. 



310 



ON THE 



INTERNAL STRUCTURE OF THE EARTH 



CONSII>Klti:L» AS AFFKfTINU THE 



PHENOMENA OF PRECESSION AND NUTATION, 



SUPPLEMENTARY TO AKIUTT: UNDER THE ABOA'K HEAD, SMITIISUMAN 

 CONTRIBUTIONS TO KNOAVEEDGE, Vol. XIX., No. 240 



llKIXli TlIK Tlllltl) OF THE 



PROBLEMS OF ROTARY MOTION. 



BY 



J. G. BAllNARI), U. S. Army, 



MEMBElt UP THE NATIONAL ACADEMY, ETC. 



[ A C c- E I' T K U K O K !• U B I, I c A T I O N , MAY. 1877.] 



