50 THE ROYAL SOCIETY OF CANADA 



Retabulating the mass of figures, and collecting the predominant 

 amplitudes lying between 4 and 8 second periods for the P and S 

 waves we have the following : 



7 8»-5 7«-5 6»-2 

 9 22 -8 24 -9 36 -8 



Similarly, if we select the governing amplitudes for the L or long 

 waves also within the limits of 4 and 8 seconds, we obtain : 



Ln-S 8-2 7-8 7-4 7-0 6-7 6-4 6-2 5-9 5-7 5-5 5-3 5-1 4-9 

 147»-8 36-5 4-4 23-7 19-7 39-4 34-0 10-8 28-6 22-2 17-7 3-9 8-9 6-4 



Le-W 80 7-6 7-2 6-9 6-6 6-3 6-0 5-8 5-6 5-4 5-2 5-0 4-8 

 144»-6 8-7 130 1-9 7-2 4-8 9-6 11-6 1-9 3-9 6-3 3-9 1-4 2-9 



To give a further oversight of the analysis the following are given : 



r) OUTSTANDING AMPLITUDES 



■IN-S 30» 10» 7"-S 6»0 4»-3 



10 -6 14 -7 35 -0 46 -2 40 -8 



Pe-W 30" 10' 7'-5 6'0 4'-3 



5-9 2-6 8-0 6-7 6-7 



Pn-5 



Pe-W 27'-l 7'-4 6'-3 5'-8 4«-l 

 5 1 6-2 5 1 5-4 6-7 



Sn-S 44'- 33' 22» 11' 10'-2 9'-4 8'-3 7»-8 6»-3 6'-0 5»-7 5»-5 5"-3 

 44 -0 86 -2 39 -6 44 -0 64 -2 83 -2 88 -0 97 -2 53 -2 73 -9 46 -2 



Se-W 39'-3 29>-5 13'-1 9'-8 9»-l 8'-4 7«-9 7"-4 5«-6 

 36 -2 38 -5 27 1 28 -3 31 -4 30 -3 36 -5 33 -4 25 -5 



Ln-S 29»-5 18"-5 16»-9 13'-4 12'-3 9'-2 8»-7 8'-2 7»-4 6'-7 6»-4 S'-9 5»-7 

 16 -7 32 -5 25 -6 35 -0 78 -4 28 -6 21 -7 36 -5 23 -7 39 -4 34 -0 28 -6 22 -2 



Le-W 24»-l 18'-1 14'S 13»1 ll'-l 9'- 6 7» -6 6» 5'-4 

 31 -8 43-4 33 -3 32 -8 23 1 21- 7 13 11 -6 6 -3 



The amplitudes noted above are not only outstanding in their 

 absolute value, but include, too, some that are outstanding compared 

 with those adjoining on either side, as for instance in the last one of 

 6-3 for period 5H, the adjoining ones (not given above, but are on 

 complete sheet) being each 3-9. 



p ABSOLUTE MAXIMA. 



N-S 



4 



■ 7--5 



5 / 4'-3\ 



V 6 -7; 



