Journal of Proceedings. clxxiii served at tables placed along the garden terrace, Lord Rayleigh gave a short but lucid address on " The Mechanical Questions Involved in the Flight of Birds," a subject to which he had given much attention, and which he had selected for an address as being likely to be of much interest to a Naturalists' Society. At the close of the address, Prof. Meldola, on behalf of the Club, said that they were extremely grateful to Lord Rayleigh for his very interesting remarks, as well as for his and Lady Rayleigh's kind hospitality to the Club. Lord Rayleigh then invited those present who were interested in physics to fill up the interval before departure by witnessing a few experiments in his laboratory. It is needless to say that to the more scientific members of the party this visit was a great treat. Lord Ray- leigh's laboratory is that of a conscientious worker for science and his researches carried on here with patience and method, have added many a stone to the grand edifice of modern physical science. Other members paid a visit to Terling Church, an ancient structure of flint and brick, where the brasses and the beautiful woodwork of the south porch were much admired. Leaving Terling Place, a short drive through the evening air—plea- sant after the great heat which had prevailed all day—led to Hatfield Peverel Station, where most of the members of the Club took the up train in which carriages had been specially reserved for them. Friday and Saturday, October 2nd and 3rd, 1885. The Sixth Annual Cryptogamic Meeting. This meeting took place in Epping Forest in accordance with arrangements very similar to those of the former meetings. On Friday the rendezvous was at Epping, and the party (consisting among others, of Or. Cooke, Mr. English, Or. Walker, Mr. A. Lister. Prof. Boulger, Mr. C. A. Wright, Mr. W. Cole, and Mr. H. A. Cole) thoroughly searched the Forest lying to the north of the town, obtaining very many interest- ing species. Mr. Lister called attention to the plasmodium of Badhamia utricu- laris—one of the remarkable group of the Myxomycetes—crawling over the felled trunks of Hornbeams. Mr. Lister stated that he had not met. with this for the past three years, though before that time it frequently occurred in his own garden at Leytonstone.* * Mr. Lister subsequently reported some observations on these specimens of the immature stage of Badhamia which may be of interest. He wrote : "I cut off some pieces of bark upon which the plasmodia were creeping, and put them on glass plates under tumblers to watch their course. Some of them never recovered the shock of gathering; they died and dried up. Others crawled off the bark and spread over the glass plate in a beautiful network of yellow veins, through which the torrent of circulation could be observed under the microscope. The stream of protoplasm flows in one direction for a minute or two, then it slowly ceases and comes to rest for some seconds, when the stream recommences in the opposite way;