THE ESSEX FIELD CLUB. 181 fully and ably than he could possibly describe them. No doubt they were all aware that one of the great points in Gilberd's celebrated work was to establish the view that the earth is a magnet. He (Lord Rayleigh) did not know that at the present day we had very much advanced beyond that view. We did not know how the earth was a magnet or why it was a magnet. He remembered that a riddle was once proposed to him in the question, "What is the difference between the North Pole and the South Pole ?" The answer—rather a pretty one—was "All the difference in the world." (Laughter.) If the question had referred however, not to the geographical North and South Poles, but to the North and South Magnetic Poles, there would have been some difficulty in finding so ready an answer. Indeed our ignorance upon the subject reminded him of an anecdote told by Sir John Lubbock of an artist's model who had had some elementary lessons in astronomy, and had learned of the distances between the stars and so forth without surprise. What she could not understand was how astronomers could find out the names of the stars. (Laughter.) In conclusion, Lord Rayleigh said he was very happy to be present on that occasion, not only because he was connected with both the Essex Field Club and the Gilbert Club, but also as a resident in the county. The Essex people had every reason to be proud of Dr. Gilberd. It was no more than the truth to say that they had not been so proud of him as they ought to have been. Gilberd was one of the first to show the light and to start inquiry upon the right lines. What he did was wonderful, considering the difficulties of research at that day. He had excited the admiration of Galileo, and to be appreciated by Galileo was appreciation indeed. He would not further anticipate the interesting lecture they would certainly hear in the evening, and in their enjoyment of which he should have been glad to participate but for other engagements. After a few words from the Mayor, who heartily welcomed the associated Clubs on behalf of the town, and expressed his sympathy with the object which had drawn them together, the company separated. The programme for the afternoon included a trip by road, under Mr. Shenstone's guidance, to the Vale of Dedham, on the Stour, many of the beauties of which have been immortalised by the famous painter, Constable, Owing, however, to the rain, which poured down in torrents at the time of starting (three o'clock) many of the members declined to go, and a small party of less than twenty, including some ladies, started for the trip, wrapped in waterproofs, and crouching under umbrellas. The weather, fortunately, cleared somewhat during the after- noon, and the ride was by no means unenjoyable. [Those members who did not venture out were most hospitably entertained at "afternoon tea" by Mr. J. N. Paxman, at "Hill House."] At Dedham Lodge the party was kindly and hospitably entertained by Mr. R. T. Cobbold and his family, and it would be difficult to say which was most enjoyed, the ramble through the beautiful garden, or the feast of luscious strawberries gathered from the beds. Mr. Cobbold showed a species of Medicago, the fruit of which so closely resembles a snail as to give it the name of "Snail-plant." Curiously enough, Mr. Crouch happened to have with him a specimen of Helix lapicida, which could scarcely be distinguished from the fruit of the plant. From the Lodge grounds a charming view was obtained of Dedham Vale, with its unsurpassed rural scenery. With many thanks to their kind host, the party re-entered their vehicles and were driven on to Dedham, and thence wended their way across the meadows by the river's side to Flatford Mills, the birthplace of Constable. Here Mr. J. C. Shenstone gave a short address on the life and work of the