This volume presents and compares palynological evidence from two Italian sites in order to reconstruct environmental and climatic conditions in the Lower Palaeolithic period. Data from Ca'Belvedere di Monte Poggiolo in the foothills of the Apennine mountains, and La Pineta in the province of Molise, south-east of Rome, are presented separately and then compared. Background discussion of the geography, geology, archaeology, climate and vegetation around these two sites opens the volume, followed by an outline discussion of the methodology of Lebreton's research. French text; abstracts in English and Italian.