THE ESSEX FIELD CLUB. 197 Mr. Cole called attention to the many cases of decay and death of Birch trees in Epping Forest, apparently due to some kind of fungoid attack. Mr. Elliott and Mr. Massee spoke also on this subject. Since the meeting our member, Mr. Paulson, has began to study this matter, and we may look for a report from him at the next Cryptogamic meeting.] The meeting soon after ended the members making their way to Theydon Bois station, to catch return trains. MEETING AT THE MUSEUM OF PRACTICAL GEOLOGY, JERMYN STREET Saturday, December i6th, 1899. On this afternoon a meeting was held in the Theatre of the Museum of Practical Geology, by the courteous permission of Sir Archibald Geikie, F.R.S., Director of the Museum. Our esteemed hon. member, Mr. F. W. Rudler, F.G.S., the Curator, received the party, and very kindly acted as Conductor throughout the meeting. The 191st Ordinary Meeting was held, as above, at 3 o'clock, Mr. D Howard, President, in the chair. The following were elected members of the Club :—Miss Maud M. Biggs, Mr. F. W. Hildyard, F.L.S., Mrs. Hildyard, and Mr. Robert Paulson. Mr. W. M Webb, F.L.S., exhibited a species of Woodlouse (Isopoda) new to Britain (Porcellio ratzburgi, Brandt) from "Warley, Essex. Mr. Webb gave some details of the occurrence of the new species, which also probably occurs at Brightlingsea. The particulars are embodied in Mr. Webb's paper in the last part of the Essex Naturalist (ante p. 127) Mr. Rudler then gave a short lecture on "The arrangement of Museums illustrating the Geologic Sciences," accompanying his remarks by the exhibition of a series of new and old maps of the Geological Survey. The main object of the lecture was to give the members some idea of the objects and mode of exhibition of specimens in the collections. At the conclusion of the meeting Mr. Rudler conducted the party through the Museum, giving many most pertinent and interesting "lecturettes" in connection with the several departments. Before leaving, at the end of the afternoon, on the proposal of the Presi- dent, a vote of thanks was very cordially given to Mr. Rudler for his lecture and for his excellent and most instructive demonstrations. [In the circular calling the meeting the following reference to the late destructive fire at the Municipal Institute, Stratford, was printed. This fire completely upset all the arrangements proposed to be made for the winter meetings of the Club :— Owing to the disastrous fire at the Municipal Technical Institute at Stratford, on the morning of October 23rd last, the Physical Lecture Theatre (which had been so kindly placed at our disposal during last Session, by the Technical Instruction Committee), was destroyed. Pending the restoration of the building, it is hoped that arrangements for meeting in another room may soon be made, but in the meantime the Council are organising two or three Meetings in the National Museums during mid-winter and spring. All Members of the Club will deeply regret the terrible misfortune which has overtaken the Institute and Library (probably the finest of their kind in or near London), but it is anticipated that the building will be restored in a year's time. The Natural History Museum most fortunately escaped without injury.]