Little research has been done on the Aegean Islands unlike the rest of Greece, therefore indications of Palaeolithic habitation are few. Geomorphological phenomena, such as changes of the sea level, intense erosion, etc. undoubtedly contribute to this scarcity. The available data come on the one hand from Thasos, where a Late Palaeolithic ochre mine has been discovered and excavated recently by Ch. Koukouli-Chryssanthaki; and on the other from the Northern Sporades, where D. Theocharis was the first to study implements of the Middle Palaeolithic period. A. Sampson makes a thorough reference to these indications as well as to more recent ones in the present issue. The lack of indications from the Cyclades, the Dodecanese, and the other Aegean islands as well as Crete remains apparent. A reference of surveying bone implements from the Rethymnon district, Crete, is by no means proof of human habitation, not to mention that there is no further use of this information.