- 1 J. Elliot Gilpin; Marshall P. Cram
The fractionation of crude petroleum by capillary diffusion
Washington, D.C.: Government Printing Office 1908; 33 Seiten; graph. Darst.
Erdölaufbereitung - 2 J. Elliot Gilpin; Oscar E. Bransky
The diffusion of crude petroleum through Fuller's earth with notes on its geologic significance
Washington, D.C.: Gov. Print. Off. 1911; 50 Seiten; graph. Darst.