This letter was with reference to the change system of minimum and maximum temperature at Madras Observatory.

This letter was about the reply to the Judge's request on magnetic variation in Madura. C. M. Smith aware there are no observations of the magnetic variation in Madura for the years 1877-78 and suggesting to consult the Survey of India, Dehradun.

This letter was about the Estacion Sismologica de Cartuja, Granada had requested the copies of the Indian Seismographs of the Iberian earthquake of the 23rd April last if it is recorded.

This letter was about the list of disturbances recorded by Milne's Seismograph at Colaba, Bombay from July to December 1914.

This letter was about earthquake records by Milne Seismograph. A register from Alipore observatory from 1st January to 30th June 1903.

The map shows the city plan of Amsterdam, Netherlands, in 1835 with an inset plan of the Environs of Amsterdam. It was drawn by W. B. Clarke and engraved by B. R. Davies. At the bottom of the Map, a comparison of 14 principal buildings in Amsterdam was also given.

The map shows the city plan of Stockholm, Sweden, in 1836. It also has a view of Stockholm from the Island of Langholm. W.B. Clarke drew it.

The map shows Islands of the Malay Archipelago or Eastern Islands in 1836. It was located between the Indian and Pacific Oceans. It was cartographed by Horsburgh, Raffles, Crawford, Duperrey, Laplace, etc and J.&C. Walker engraved it.

The map shows the city plan of Frankfort in 1837. At the bottom of the map has view of Frankfort from Sachsenhausen. The map was drawn by W.B. Clarke and engraved by T.E. Nicholson.

The map shows a city plan of Brussels, Belgium, in 1837 with an inset of the environs of Brussels. A comparison of 8 buildings in Brussels is at the bottom of the map. The map was drawn by W.B. Clarke and engraved by B.R. Davies.