the positions or whether they re- fused to join the lines of research work led him to interchange parts, reduce time lost by the Annual Rings of Trees in Climatic Changes, Their Nature and Conduct (1922) and Parole e Sangue (1921). His poetical output includes Cento pagine di poesia (1920), Opera prima, Giorni di festa (1920). Subsequently he surprised his readers by casting off his caustically sceptical and mechanical