vn 

 CHAPTKK V. 



RESULTS OF ORSEKVATIOXS. 

 ART. PACK 



50. Static K.H'oiJs 52 



51. Records oil continuously moving plates 53 



52. Earliest K.ronis „. 54 



53. Earthquake of Febmmiy 7ili, 1881 55 



54. Earthquake of March Stli, 1881 5(i 



55. EarllKiUiikos of March 1st, 18S2 58 



56. Earthquake of Marcli 11th, 1882 59 



57. Earth<iuake of March 19th, 1882... ßO 



58. Earthcjuakc of Auf,'ust 18th, 1882 Cit 



5!». EarthquakeofSepteniber 29tli, 1882 61 



60. Earthquake of April 23rfl, 1883 CI 



01. Siiinniary of result.« 6.3 



((2. ('onipli-xily of till' million 64 



CHAPTEi; VI. 



MISOF.t.LANF.OlIS I NSTIM MF.NTS. 



63. Fliiiil I'cniinhnns 'ill 



64. Siamling Culuiinis (17 



65. Mallet's Ball Soisinonieti'r 68 



fi6. l'eii<]ulunis iiilcniled lo swin^; <i'.' 



67. Perry and Ayrton's jiroposed Sci-iiiM;.'ra|ili IUI 



68. Electric Seismoscopes . T<l 



69. Paliuicri's Siisniic Ap|>aratus 71 



7". Tinic-takcrs 72 



71. Uoi'.si'rt S«'i.snioscope and Mici'oseisniic Apparatii- 73 



72. < )ilii'r Microscisnioscopes 7:> 



73. 4)|itical riieiliiMl of ninltiplying lhi> disphicenient of a pendidiini 74 



74. Mca-iiretni'nl of •■ar(hi|iiMl«-i iiy reference to their EH'eels im Kuildinixs 75 



CHAITEU VII. 



Hl'MMAHY AMI < i iM lA lilsoN <>K INSTIMtMIONIX ASH MCrmilW. 



75. I ^!ie|p»ijinocs uf all rxeiqil St<'adV'|iiiilil Seisnioini'tei-s 7ti 



7ti. f'la!<iificalion of Slendy-poinl Seisnionuli-iv 7ii 



77. < Jitnral prinripli' iif Steady-point Sei-'inonielers . 77 



