60 Genl. J. T. \\^i\\keY—Eart}iquahe ofSlst Dec, 1881. [March, 



has been described and fiorured by E. Thomas, ibid, p. 63, No. 19, and PI. 

 II, fig. 12. The site of Muazamabad does not appear to be exactly 

 known. Blochmann was inclined to identify it with Muazampur in Sonar- 

 gaon in Eastern Bengal (see Thomas's Ghronicles, p. 151, and Blochmann's 

 Oeography and History of Bengal, in J. A. S. B., Vol. XLII, pp. 235, 236). 



I may take this opportunity to exhibit a coin which I found among 

 others obtained for the Society's cabinet not long ago from a treasure 

 trove discovered in the Sonthal Purganas. It is a coin of Sikandar Shah, 

 but its peculiarity is that it is of a Mint apparently hitherto unknown. 



The margin reads : 



AjUjij.*«p j ^^^^ ^ ^i (^.M» jj-^l^ i-^^ t^r^ (^Iwjjlsi. tJ^i/0 &^«*»i| }J«Xjjf cjy^ 



The name seems to be Ghdiualstdn, a place in Kd?nru {Kdmrup) or 

 Assam, but I can find no information about it. Nearly all diacritical 

 marks are omitted in the legend. The date of this rupee is 759. There 

 were two coins of this kind in the collection. One belongs now to General 

 Cunningham, the other has been acquired for the Society. 



The other coins of this set consist of rupees of Shamsuddin Ilyas 

 Shah, Mint Sonargaon, dates 754, 755, 757 ; Mint Finizabad, dates 750, 

 754, 757 ; again of Sikandar Shah, Mint Hasrat Jalal Sonargaon, dates 

 757, 758 ; Mint Baldat Firuzabad, dates 757, 758 ; again Shamsuddin 

 Firuz Shah (702-722 A. H.), Mint Lakhnauti, date 715 ; again Nasrat 

 Shah, bin Husain Shah, Mint Khalifabad, date 925 (during his father's life- 

 time). See J. A. S. B., Vol. XXXVI, p. 45, and Vol. XLII, p. 297. 



The following papers were read — 

 1. On the EarthciuaTce of the ^Ist 'Decem'ber, 1881. — By Lieut.-Genl. 

 J, T. Walker, R, E., C. B., F. R. S, Surveyor General of India. 

 (Vide Plates III, IV.) 



On the morning of the 31st December, 1881, an earthquake occurred 

 in the Bay of Bengal, which operated with considerable violence in the 

 neighbourhood of the Andaman and Nicobar Islands, anfl with more or less 

 violence along the entire length of the west coast of the Bay, from Ceylon 

 to Calcutta, and was also felt, though comparatively slightly, at various 

 points on the east coast. In addition to the ordinary shocks produced by 

 the waves of force acting through the ground, the surface of the ocean was 

 greatly disturbed, and waves were formed which continued to roll against 

 the coast lines for several hours after the cessation of the earth- waves, 

 which lasted for only a few seconds. The clerk in charge of the tidal 

 observatory at Port Blair reported a great disturbance of the surface of 

 the sea to have taken place there, which had violently agitated the pencil 

 of the self-registering tide gauge, causing it to oscillate in the course of a 

 few minutes through spaces nearly equal to the entire normal semi-diurnal 

 oscillation, and after a time to tear the paper of the diagram ; this had 



