Nature

A. V. Hill acid activity Agriculture animals appear applied appointed Association Bausch & Lomb biological Britain British Cambridge carotene cent chemical chemistry College colour Committee COOKE OPTICAL culture cuticle dental caries Department disease economic effect electrical engineering evidence experimental experiments field forests given Government human important increase industry insect Institute interest investigation laboratory large number larvæ lectures lignans London malaria material mathematics measure ment methods milk molecule Museum NATURE observed obtained organization paper period phosphorus physical phytic acid plants plates Pleistocene present problems production Prof published recent Review Royal Society School scientific soil species Sterkfontein structure suggested technical temperature theory tion University University of Liverpool University of London vitamin vitamin D war-time workers