MUSEUM OF COMPARATIVE ZOOLOGY. 



31 



from Sept. 8, 1909, to July 29, 1910 (Continued). 



TION OF 



Distance 



1st Pre- AH Pre- H A = 3A = 

 liminaries liminaries V2— Vi Wi — Vi 



Remarks 



h. m. 

 1 00 



1 50 39 



6 28 



7 16 



6 18 

 9 41 



4 28 



4 08 

 10 36 

 10 19 



5 44 

 5 46 



5 27 



4 28 



10 58 



m. s. Miles 

 13 06 

 13 13 



12 00 



11 14 



7 39 



16 23 

 25 26 



14 49 



30 14 

 30 15 

 15 22 

 14 45 



10 15 



3050 



15 45 39 45 



2400 

 2450 



2760 

 1850 



Miles 



2750 



5000 



*3850 

 3500 



2484 



*4675 

 2350 



1580 



6480 

 6790 



3300 



5975 I 6250 



3200 

 3000 



2150 



8250 



mm. 

 i <* 



12 





1 



5 



3 



75 







675 



1.2 

 3.0 



1.0 

 0.2 

 0.8 

 0.8 

 1.0 

 1.0 



1.0 

 3.0 



0.2— 



0.2 + 

 13.6 

 20.0 



0.6 



1.0 



1.0 



4.0 



9.25 



2.0 



2.0 



6.25 



9.9 



1.0 



4.2 



5.0 

 92.7 



1.0 

 1.0 

 1.6 



Quake reported in California at 10:55 



p. m. March 10. 

 Origin west of 90th Meridian. 



*2 A-l = W1-V2 

 Doubtful beginnings. 



8: 13: 35 reflected L.? 

 8: 14: 15 



Chronograph stopt. N-S. 

 O. in Costa Rica. 

 Beginning uncertain. 



Quake felt at Helena, Montana, at 11:30 



p. m. 

 *2A-1 =Wi-Va. 

 E. W. held by damper. 

 Cartago, Costa Rica, destroyed by Q 



Quavers from ca. 9 a. m. until 5 p. m. 



San Domingo Q. 



Vi at Ottawa 4: 11:03. 

 Distance =2 A-l =Wi— V 2 . 

 Shocks in Costa Rica this a. m. 



Quakes reported at Los Angeles from 6 : 50 



to 7 : 53 a. m. 

 No distinct record N-S. I parallax. 



Hour may be 2 or 4 with corrections for 



Time uncertain, as given, slow: Q at 

 Guerrero, Mex. 



Record not clear. 



2nd Wi 2-22-56; 

 2nd Wi 2-27-47; 

 No record N-S. 

 Periods of 15.4 sees. 

 N-S. readings doubtful. 



M at 2-27-43. 

 M at 2-30-33. 



