Fig. 34. The Earthquake of November 17th, 1808. (NS component). 



Jour^ Sc. Coll. Vol. XI. PI. XI. 



a (9.54-. S3 p.m. j S 



zx:::^==:zcÔLÙ£::b:)l^ 



--VI 



y-j\r^ •~^y\j\j\AJ^.^ 



B and b of (I) are to be considered as bemg continuous respectively to B' and b' of (II). Time : 1 tick interval — 1 minute. 



