This letter is enquiring about the record of a shock of earthquake, slightly affecting Madras on or shortly before 16th March 1911

This letter is about sending a copy of the record of the Seismic disturbances obtained from the seismograph in use at the Alipore Observatory for the half year from 1st January to 30th June 1903 together with photocopies.

This letter is about forwading several copies of pamphlets amd question cards issued by the Kaiserliche Hauptstation fur Erdbebenforschung, Strassburg

This letter is about informing that there has not been any earthquake recorded in or near Madras for many months and states that there cannot have been one strong enough to crack building

This letter is about Simla informing of not having records of Iberian earthquake

The letter is about informing the director of the Geological Survey of India about sending of seismographic records taken at Madras Observatory on 23rd May, 1912

This letter was a reply to the letter discussing definite periodicity in sunspot activity in the mean period being 11.12 years.

This letter informs about the occurance of earthquake on 8th February 1900 at 3 and 3:10a.m.

This letter is about sending of a copy of the recording of the Seismic disturbances obtained from the Seismograph in use at the Alipore Observatory for the half year from 1st January to 30th June 1906 together with photocopies of the traces for dates in June

This letter was about test observations and the conditions at maximum and minimum thermometers. Asking the opinion of C. M. Smith.