ON SEIS.MOLOGICAL INVESTIGATION. 



241 



Magnetometer Disturbances recorded at the Hoyal Alfred Observatory, Maurittun. 

 Disturbances are indicated as : s = small ; rs = reri/ small ; a = abrupt : 

 ra — very abrupt ; sa = small abrujit. Director, T. F. Claxton, Esq. 



No. 



No. on 



list 

 p. 227 



Month 



Day 



Time of 

 Earthquake 



Magnetic Disturbances 



IV. 

 VII. 

 VII. 



VIII 



X. 



1898 



18 



11 



28 



27 



1889 



5 21 A.M. 



10 22 

 30 



P.M. 



( 3 dU 



1 C 

 7 37 



P.M. 

 P.M. 



P.M. 



H 7h. 35m. A.M._8h. 10m. vs, 9h. 45m.- 



lOh. Om, vs, llh. 10m. -13h. 10m. 

 H 3h. 40m. P.M.-4h. 40m. vs, 5h. 30m.- 



Gh. s, 7m. vs. V 3h. 40m.-6h. 10m. vs 

 H 5h. 50m. P.M.-6h. 30m. vs, 7h. 10m.- 



9h. 10m. vs, lOh. 10m. to 2 A.M. on 



29th, vs 

 H 3h. 40m. P.M.-.5h. 20m. vs, 5h. !)0m.- 



6h. 40m., 7h. 37m.-yh. 10m. vs. V 



4h. 10m.-8h. 10m. vs 



1891 



9 38 P.M. 



H 4h. 40m. P.M.-5h. 40m., 7h. 30m.- 

 8h. 10m. s. D 4h. 46in. vs-7h. 35m. vs 



1892 



f 1 22 P.M. I 

 t 5 22 P.M. i 



4 21 A.M. 



5 24 P.M. 



1 19 A.M. 



H 15d. 8h. 40m. P.M.-9h. 20m. V 



9h. 10m.-9h. 20m. a 

 H7h.0m. A.M.-7h.40m. vs. D 4h. 10m.- 



5h. 40m. vs. V 4h. 40m.-5h. 10m., 



7h. Om.-7h. 40m. vs 

 H 2h. 28m. A.M.-5h. 40m. vs. D, like 



H, also on the 5th. Y, like H, also 



on the 5th, sa 

 H 8cl. 8h. 10m. A.M. and llh. lOm.- 



5h. 10m. P.M. s. D like H, but vs. 



V 8h. lOm.-lh. 10m. p.m. 



1893 



11 46 P.M. 



5 7 P.M. 



6 13 P.M. 

 9 40 P.M. 



5 P.M. 

 5 17 A.M. 



11 6 A.M. 



G 20 A.M. 

 8 43 P.M. 

 1 51 P.M. 



5 48 A.M. 



H 7h. 25m. r.M.-llh. 10m. vs, 29d. 



9h. 10m. a. V 7h. 38m. P.M.-7h. 43m., 



8h. 10m.-8h. 20m. 

 H Ih. 10m. p.M.-7d. 9h. 10m. A.M. vs 

 H 6h. 10m, P.M -7h. 10m. vs, a wave 

 H lOh. lOra. P.M. -lOh. 40m. vs, 



lOd. Oh. 10m. A.M. vs, Ih. 40m. vs. 



D lOd. 4h. 10m. a-5h. 10m. vs 

 H 4h. 10m. p.M.-5h. 10m. vs. D 



llh. 50m. A.M. -12h. Om. vs 

 D 15d. 4h. 10m. A.M. s-8h. 40m. vs, 



9d. 40m. P.M.-llh. 40m. vs, 16d. 



Ihr. 10m. A.M.-5h. 10m. s. V 15d. 



9h. 40m. P.M.-lOh. 40. H, a small 



m agneti c disturbance, February 1 4 - 1 8 

 H llh. Om. P.M. -Oh. lOm. a.m. shallow 



wave 

 H 5h. 50m. .4..M.-lh. 11m. p.m. 

 H 5h. 40m. P.M. s 

 H 5h. 10m. A.M. -llh. 10m. s. D like 



H but faint 

 D 4h. 40m. a.m. vs 



