CHAPTER IV
AIRY
One hundred and sixty years from the day when Flamsteed laid the foundation stone of the Observatory, the Royal Warrant under the sign manual was issued, appointing the seventh and strongest of the Astronomers Royal, August 11, 1835. He actually entered on his office in the following October, but did not remove to the Observatory until the end of the year.
George Biddell Airy was born at Alnwick, in Northumberland, on July 27, 1801. His father was William Airy, of Luddington, in Lincolnshire, a collector of excise; his mother was the daughter of George Biddell, a well-to-do farmer, of Playford, near Ipswich. He was educated at the Grammar School, Colchester, and so distinguished himself there that although his father was at this time very straitened in his circumstances, it was resolved that young Airy should go to Cambridge. Here he was entered as sizar at Trinity College, and his robust, self-reliant character was seen in the promptness with which he rendered himself independent of all pecuniary help from his relatives. In 1823 he graduated as Bachelor of Arts, being Senior Wrangler and Smith's prizeman, entirely distancing all other men of his year. He had already begun to pay attention to astronomy, at first from the side of optics, to the study of which he had been very early attracted; a paper of his on the achromatism of eye-pieces and microscopes, written in 1824, being one of especial value. In 1826 he attempted to determine 'the diminution of gravity in a deep mine'—that of Dolcoath, in Cornwall. In the winter of 1823-24 he was invited to London by Mr. (afterwards Sir) James South, who took him, amongst other places, to Greenwich Observatory, and gave him his first introduction to practical astronomy. In 1826 he was appointed Lucasian Professor at Cambridge, and in 1828, Plumian Professor, with the charge of the new University Observatory. Prior to his election he had definitely told the electors that the salary proposed was not sufficient for him to undertake the responsibility of the Observatory. He followed this up by a formal application for an increase, which created not a little commotion at the time, the action being so unprecedented; and after a delay of a little over a year he obtained what he had asked for. The delay gave rise, however, to the remark of a local wit, that the University had given 'to Airy, nothing, a local habitation and a name.'
GEORGE BIDDELL AIRY.
The seven years which he spent in the Cambridge Observatory were the best possible preparation for that greater charge which he was to assume later. When he entered on his duties the Observatory had been completed four years, but no observations had been published; there was no assistant, and the only instruments were a couple of good clocks and a transit instrument. But Airy set to work at once with so much energy that the observations for 1828 were published early in the following year, and he had very quickly worked out the best methods for correcting and reducing his observations. In 1829 an assistant was granted to him, in 1833 a second, and in the latter year Mr. Baldrey, the senior assistant, observed about 5000 transits, and Mr. Glaisher, the junior, about the same number of zenith distances.
A syndicate had been appointed at Cambridge for the purpose of visiting the Observatory once in each term, and making an annual report to the senate. A smaller-minded and less acute man than Airy might have resented such an arrangement. He, on the contrary, threw himself heartily into it, and made such formal written reports to the syndicate as best helped them in the performance of their duty, and at the same time secured for the Observatory the support and assistance which from time to time it required. On his appointment to Greenwich, he at once entered into the same relations to the Board of Visitors of that Observatory, and from that time forth the friction that had occasionally existed between the Board and the Astronomer Royal in the past entirely ceased. The Board was henceforth no longer a body whose chief function was to reprove, to check, or to quicken the Astronomer Royal, but rather a company of experts, before whom he might lay the necessities of the Observatory, that they in turn might present them to the Government.