92 Proceedings of the Asiatic Soerety. [Aprit, 
48. 38 Regulation Books in Dutch from 1750 to 1766, 
49. 2 Books containing statute for Batavia in Dutch from 1664 
to 1669. 
50. 1 Chinsura Police Regulation Book in Dutch for 1761. 
51. 1 Memorial of the Residents of Chinsura, in Dutch, from 
1819 to 1822. 
52. 1 Book containing Proceedings in English and Dutch of the 
Dutch Court at Chinsura from 1815 to 1817. 
53. 1 Memoir Book in Dutch. 
54. 8 Books containing copies of letters in Dutch on various 
subjects. 
55. 2 General Muster Rolls in Dutch shewing the names of 
officers appointed by the Dutch Government of Chinsura. . 
56. Correspondence on various subjects in Dutch and English 
between the Dutch authorities and English Commissioners. 
57. One Book containing extract from the Proceedings of the 
Hon’ble Warren Hastings, Governor-General, relative to the cap- 
ture of the Fort and Town of Chinsura, 1781. 
58. 1 Book containing letters and receipts in Dutch from 1797 
to 1798. 
59. 2 Books containing letters of Colonel Van Citters in Dutch. 
60. 2 Books containing copies of correspondence between the 
Dutch Governors of Chinsura and Batavia from 1792 to 1795. 
61. 2 Registers of letters in Dutch and English of the 2nd 
Resident on various subjects, 1817. 
62. 6 Various account Books in Dutch. 
63. 20 Registers of letters in Dutch on various subjects. 
64. 1 Batavia account-current book in Dutch. 
65. 38 Account Books in Dutch from 1817 to 1821, 
66. 1 Register of letters and accounts in Dutch and English 
relative to the old Church at Chinsura. 
8. ON A QUANTITATIVE METHOD OF TESTING A ‘ TELEGRAPH 
Eartu,”’ by W. E. Ayrton, Esq. (Abstract.) 
The method used up to the present time for testing a telegraph 
earth has been qualitative only. As, however, the electrical condi- 
tion of every ‘‘earth” is of great practical importance, it is 
