THE Cement Gun Apparatus had a rather curious origin. It was invented in America between 25 and 30 years ago, as the result of some experiments made by Mr. Carl Akeley, a big-game hunter, in forming the mounts for his trophies. The carcases were formed by spraying plaster of paris on to an expanded metal frame of the required shape. T. Whitley Moran
Mr. F. G. COALES, M.Inst.C.E., M.I.Struct.E., proposed a hearty vote of thanks to the authors for their paper and said he was privileged to have the honour of so doing.
Dr. OSCAR FABER, commenting on his criticisms in the paper of concrete floors, said that they were by no means intended to be a general condemnation of concrete floors; they had reference only to the use of reinforced concrete for certain specific purposes. He disclaimed any intention to condemn concrete floors generally.