AT the anniversary meeting of the Linnean Society of London held on May 24, the president, Prof. G. R. de Beer, announced that a message of congratulation had been addressed to H.M. Queen Mary, honorary member of the Society, on the occasion of her eightieth birthday, and that H.R.H. the Princess Elizabeth had been pleased to accept the honorary membership of the Society. He delivered a presidential address on “How Animals Hold Their Heads”. The Linnean Gold Medal was awarded to Prof. Maurice Caullery, of Paris, who was present to receive it. The following were elected officers for the session 1947-48 : President, Prof. G. R. de Beer ; Treasurer, Colonel F. C. Stern ; Secretaries, Dr. Malcolm A. Smith (Zoology) and Dr. B. Barnes (Botany). The new Members of Council were Prof. G. D. Hale Carpenter, Mrs. Vera Higgins, Mr. E. W. Mason, Dr. W. E. Swinton and Dr. George Taylor. The following were elected foreign members : Prof. A. Chevalier, Museum d'Histoire Naturelle, Paris ; Prof. C. M. Child, University of Chicago ; Prof. E. Fischer-Piette, Laboratoire de Malacologie, Paris ; Prof. E. Hulten, Natural History Museum, Stockholm ; Dr. G. G. Simpson, American Museum of Natural History, New York. In addition, W. G. Mackenzie, curator of the Chelsea Physio Garden, and A. W. Stelfox, of the National Museum of Ireland, were elected associates honoris causa of the Society. During the proceedings a film entitled “The Development of the Sperm Cells of the Grasshopper” was shown, with a commentary by Dr. C. D. Darlington.