Letter from F W Oliver, Dar el Nabati, to EJ Russell Letter includes details on dust-storms, such as the manurial value of dust. With typed copy. "From 1929 until 1935 Oliver was professor at Cairo University. In the latter year he went to live on the edge of the desert and studied the changing aspects of its vegetation. He returned finally to England in 1950". (From the Oxford Dictonary of National Biography). 3 October 1942