196 REPORT—1899. 
These small movements may possibly have been connected with an 
earthquake noted at Cadiz on March 30. 
No. 182, March 31. (Origin, California ?) 
H. M. °S. M Hi. Moe, 
Shide peta I! | 4 8. Zou! ° 
Nicolaiew . s 8 22 0 ; 8 : 8°. 34.21 
Potsdam — : — 5 $ 26 0O 
Edinburgh . 7 36 30 F — é — 
No, 185, April 3, 
H. VOC teks: M. Hs Woks 
Shide . i Nooo 5 — 5 7, 4130 
Nicolaiew 6.53. 40: ‘ — , 6 58 O 
Potsdam — i — 4 ty O30 
San Fernando 7 44 #4 : — ‘ = 
No. 188, April 6, 
He | Su iS: M. Hf leds: 
Shide . é PPPS Y mal y/ : 6-0 ‘ 12 46 0 
Toronto ; . 12 44 40 3 70 . 12 54 44 
Potsdam . Slo aoe, : 3°0 : 12° 4020 
San Fernando . 12 36 49 4 = : —_ 
Origin, Western Atlantic. 
The Shide seismogram shows symmetry between the shocks and first 
echo. 
Yo. 189, April 15. (Origin, California.) 
Locality | Commencement | P.T.’s | Ist Max. | 2nd Max. | 3rd Max. 
ee LD pow. eee | aes 
Hi. bite us. | ams. |x me 5. OM use 
Shide iano — een 1) 52 45D 8a 0 eer eo 
Nicolaiew (6A ON Be, Oe - BT OM — | — 
Rocca di Papa (Gy a0) =e eS eee — = 
Ischia . 8 10710 — | _ — —_— 
Potsdam var Ce Pe Yo | — — 
Toronto — — | 7 26 40 | = = 
Edinburgh 7 i392 70 — | _- | — | —- 
The above was noted at about 7.20 a.m., April 15, in California, at 
Albion, Mendocino Co., where it caused minor damage. The time at 
which the P.T.’s commenced at Shide, owing to air tremors, is not clearly 
defined. ‘Neither is this phase clear in the seismogram from Potsdam. 
Mr. Ralph R. Funk, of Albion, California, writes me with regard to a 
series of shocks, of which the above is one, saying that ‘frequently we 
would be called to the “ phone,” and in answering would be asked, “ Did 
you feel that one?”’ The movements reached us about the time of our 
reply. The other end of the line was about twenty miles inland, and the 
conclusion is that the shocks must have originated inland. Mr. Funk 
enclosed with his letter cards from a Draper’s self-recording thermometer, 
showing the effect of shocks upon the record. Between April 15 and 18 
I count twenty-two sudden displacements with ranges of from 2 to 
10 mm. 
Mr. Funk’s observations lead to the conclusion that these earthquakes 
originated at a centrum from forty to sixty miles inland from Albion, and 
the times of their origin would be about one minute earlier than the 
