Letter from Charles Chambers, Colaba Observatory [Mumbai] Bombay to Edward Sabine Chambers informs Sabine that his brother [Frederick Chambers] has devised a rain gauge which has been operating satisfactorily during the last monsoon in [Mumbai] Bombay. The rain gauge is adapted with the Kew barograph, and therefore Chambers suggests a description of the apparatus [see MS/257/1/365 and MS/257/1/366] may be interesting to Sabine, the meteorological committee, and members of the Royal Society. Reference to a mistake in sending out a second barometer for their barograph. 4 November 1871