Sir David Gill, K.C.B., LL.D., D.Sc., F.R.S., F.R.A.S. /
Roberts, Alex. W.(Alexander William),1857-1938,author.
"From the Transactions of the Royal Society of South Africa, vol. V., part 3, December, 1915."--cover.
Gill, David, 1843-1914.
Astronomers