ON SEISMOLOGICAL INVESTIGATIOX, 



205 



Velocity of Propagation : 

 Time at origin, 11 hrs. 5 mins. 1 sec. 



The maximum angular tilting, as indicated on the photographic film, 

 would be about five seconds of arc. 



Since writing the above several papers bearing on this earthquake 

 have been received. From one, by Dr. G. Agamennone,^ I have combined 

 two tables giving the velocities of propagation on arcs of the preliminary- 

 tremors (P.T.s) and the long waves (L.W.s), and added notes respecting 

 the character of the instruments yielding the records on which these 

 determinations were made. 



Jlend. della Jl. Accad. del Lincei, vol. vii. 1889, pp. 265-271. 



