*■■ 



GVI LIELMI GIL 



B.E R T I C O L C E S T Fl E N- 



^Z 



SIS, MEDICI LONDI- 

 NENSIS, 



b E .HA G N E T E, M A G N E T J- 



C I S .C^V^. CORPORIBVS,ET DEMAG- 

 no"i15ngrfctc tcllure ; "Pliyfiologia noua, 



• f/urims i^ argwHentis^ (y*'cxpe^ 

 rinicniis dcnionftra'ta. 



/"t ON DIM I -C^ 



■ EX"C VI>EB AT pETRVs Sh6rt ANNO 

 ■.• MBC- ■• ■ 



» <• 





^* ... 







..% 



Figure I —William Gilbert's Book on thk Loadstone, Title Page of the First Edition, 

 FROM A Copy in the Library of Congress. (P/io/o courttsy of the Library of Congrfss.) 



PAPER 8: NATURAL PIIU ()S01'H^ ( >1 WILLIAM CMLBERI 

 471274—50 9 



123 



