Two photograph mounted together of an 18inch Coelostat, made for the Canberra Observatory, New South Wales by Sir Howard Grubb, Parsons & Company at their optical works in Newcastle-on-Tyne, England. Two photograph mounted together of an 18inch Coelostat 1921-1931
Poster displays showing mutations of influenza virus shown by Professor W G Laver at the Royal Society in June 1994 Poster displays showing mutations of influenza virus 1994