CROSSKEY, HENRY WILLIAM English geologist and Unitarian minister, was born at Lewes in Sussex, on Dec. 7, 1826. He became an authority on glacial geology, and in conjunction with David Robertson wrote many papers on the post-tertiary f ossilif erous beds of Scotland (Trans. Geol. Soc. Glasgow). He also prepared for the British Association a valuable series of reports (1873-92) on the erratic blocks of Eng land, Wales, and Ireland. With David Robertson and G. S. Brady he wrote the Monograph of the post-tertiary Entomostraca of Scotland, etc., for the Palaeontographical Society (1874). He died at Edgbaston, Birmingham, on Oct. 1, See R. A. Armstrong, H. W. Crosskey: his Life and Work