Krazer.J ^42 f April 6. 



nia pacano a spinster ; pacanoka my second child (hijo, liija de en 



medio), viro pacano unmarried man. 

 pequata vassal, 

 pona to come ; ni ponala I come. 



ponachica ? do yon bring ? (see : viro). 

 8oba meat ; deer-meat, 

 taca fire ; coal-fire ; taca cliale new coal fire (candela nueva in Span.) ; 



taca elm carbon, charcoal, 

 tafi sister-in-law (used by men only); tafimitana, ni tafimitama the brother 



of my husband (used by -women), 

 tico canoe, boat ; ticopaha ship, 

 tinibo woodpecker. 



ulipassa fragments of pottery (uli = Span. olla). 

 nti earth, land, country ; uti-hasomi those forming the Earth-pedigree or 



Earth-Family, utina my country ; uti nocoromale the inhabitants 



of ONE country, 

 riro man ; chiri viro boy, son ; viroleqe uquata puenonicala, I brought 



here a male child. 



The ApproacJiea to a Theory of the Cause of Mdgnetk Dedination. 



By Persifor Frazer, Jr. 



{Bead before the American Philosophical Society, April 6, 1877.) 



So many questions of historical, economical and scientific interest are 

 hound up with the variation of the magnetic needle from the astronomical 

 North, and the change in the rate and sign of this variation, that the fol- 

 lowing remarks may be excused, even if they only succeed in impressing 

 upon the imagination the immense amount of work which yet remains to 

 be done. The best compendium of the history of tlie subject is con- 

 tained in a prize essay on Terrestrial and Cosmical Magnetism by E. 

 Walker, Cambridge (Eng.), 1866, while for particular discussions of spe- 

 cial groups of observations, Sabine's Secular Variations of the Magnetic 

 Needle, in the Trans, of the Royal Society during the last five years ; Prof. 

 A. D. Bache's discussion of the magnetic elements, observed at Girard 

 College during the years 1840-45 inclusive ; in Coast Survey Reports for 

 for \^r)T-,, 1H5K, 1859, I860 and 1862, and especially Mr. C. A. Schott's la- 

 bors on these and all other obtainable data in the United States, have been 

 mainly drawn upon. Besides these, for general questions relating 

 to the subject. Barlow's treatise in the Encyclopanlia Metropolitana ; 

 Airy's treatise on Magnetism, London, 1870 ; Numerical Relations of 

 Gravity and Magnetism, by P. E. Chase, Trans. A. P. S. 1864 ; Prof. 

 Loomis' collection of magnetic observations ; Silliman's Journal. 1838 to 

 1840; Reclus, Despntz, BciMiuerel, llumljoldt, "Magnetism," by Sir W. 



