THE HISTORY OF GEOPHYSICAL PROSPECTING
Volume One

ACKNOWLEDGMENT OF SOURCES

Most of the oil companies have published books of their founding and emergence into a position of prestige, usually either exceedingly large volumes or exceedingly snall ones. Often a quaint mixture of fact and pollyanna pabulum, with every officer a paragon of virtue, and in one instance the Viola repeatedly referred to as a sandstone; they nevertheless contain much fundamental. material and have been read with this in mind. Privat books on the romance of petroleum from authors Samuel Tait; F. R. Latta; Michel Halbouty; Ruth Knowles; James Clark; Max BalI; Isaac Marcosson; Henry Ionghurst; W. L. Connelly; Charles Warner; Williamson, Andreano, Daum and Klose, and a number of others, are full of charm and erudition, and play no small part in my basic knowledge of the oil industry. Bulletins and publications of the American Association of Petroleum Geologists, the American Petroleum Institute, the Unite States Geological Survey amd of the Society of Exploration Geophysicists have furnished important information not available from any othar source. Mrs. Reginald Fessenden's biography of her husband and J. A. Spender' s "Weetman Pearson“ were of great value in the preparation of Part Seven and Part Four, respectively. A hearty thanks must go to Henry Salvatori, William Ted Born and to Dr. Otto Geussenhainer for the original contributions appearing in Part Seventeen; also to the Continental Oil Company for supplying the letter of Dr. W. A. J. M. van der Gracht. Three different research grants by the Society of Exploration Geophysicists have mad the research of 1964, 1965 and 1966 possible, including more than two month of interviews and fact-finding in Europe.

Word of mouth has supplied the majority of the contents of this voume. I have held from three to eight conferences with a number of extra-special people. These extra-special individuals; possessed of a high-octane rating on memory, patience and cooperation; are Bert Houghton, Wallac Pratt , Craig Ferris, John Clarence Karcher, Adam Malone, A. I. Levorsen, Charles , Bazzoni, Frank Searcy, Edgar Owen, Dave Carlton, Alfred Jacobsen, Sigmund Hammer; Reginald Sweet, Brian Eby, Mrs. E. L. De Golyer, Frank Ritchie, Ben Weatherby, Roy Lay, Dolly Radler Hall, Raoul Vajk, Andy Gilmour, Maurice Ewing, Chalmers Pittman , Hugh Thralls, Cecil Green , William Ransone and Eugene McDermott.

Help from across the ocean came from Olaf Sundt in Florence; from Robert Stonely, Sir Edward Bullard and Lawrence Lockhart of Cambridge University; from Lucien Bull and Jacques Moulin of Paris, and from The Hague, Arie van Weelden, Bas Baars. and Hylke Hoogeveem. London multiple interviews were undertaken with Adam Malone, John Bruckshaw, Sir Lawrence Bragg, Richard Davies, Maurice Cochrane, R. Greaves and T. F. Gaskell. The long discussions in Hannover were held with Otto Geussenhainer, Hans Closs, Walter Zettel and H. W. Maass. 

American conferences from which important information came to me and the cities in which they were held, are as follows: