As a member of the Danish Government Expedition to East Green .fi. land in 1 926-27 under the leadership of Dr. LAUGE Kocu I had ample opportunity of studying the sedimentary deposits within the Scoresby Sound area, especially the Jurassie beds in Jameson Land and Liverpool Land. The present paper deals with the Lias, which l subjected to a particular investigation. It is rny p leasant duty to thank the leader of the expedition, Dr. LAUGE Kocu, for p leasant company and much unselfish assistance during the expedition and for handing over to me for description a number of Liassic fossils from Liverpool Land. I am also indebted Lo Dr. ToM HARRIS, Cambridge, my fellow-member on the expedition, who has p laced valuable Liassic material collected in J ameson Land at my disposal . Finally, my acknowledgements are due to my Greenlandish assistants, who with great zeal assisted me in my work, notably MIKAEL Ku:sAK, Eu l'iAPARTOK, and JoiL\:S ABELSE:s. <...>