Nature, Količina 100

acid æther Agriculture ammonia appears applied Association Board British cent chemical chemistry coal College colour Committee considerable Council deal Department described direction discussion edition effect electric engineering experimental experiments fact France Geological German given gives Government illustrated important increase industry Institute interest investigation iron J. J. Thomson Journal laboratory larvæ lectures London magnetic manufacture mathematical means measure ment methods Ministry of Munitions Museum National Physical Laboratory NATURE November observations Observatory obtained October October 18 optical organisation paper physical plants potash practical present Price problems production Prof published pyrometers recent regard ROVAL Royal Society schools scientific Scotland solution South South Africa species stars supply survey technical temperature theory tion University utilisation various viscosity W. E. Castle W. H. Young