Additional Authors Are Irving Gringorten, Roy C. Gunter, Jr., And Bart J. Bok.

Additional Authors Are Knox McIlwain, Charles J. Hirsch, E. F. Flint, P. R. Adams, And R. I. Colin.

Additional Contributors Are Colin H. McIntosh, B. M. Dodson, Walter Hadel, G. G. McLintock, G. A. Patterson, N. Wyman Storer, Paul E. Stanley, William J. Catlett, Jr., Irving I. Gringorten, Charles H. Smiley, J. J. Green, And A. A. Chester.

Additional Authors Are J. A. Fleming, D. F. Folland, Paul E. Wylie, G. F. Jacobsen, Alton B. Moody, R. A. Tuttle.

Additional Contributors Are Colin H. McIntosh, B. M. Dodson, Walter Hadel, G. G. McLintock, G. A. Patterson, B. W. Sitterly, J. A. Pierce, Neal Harlow, William H. Holman, III, Ralph F. Haupt, Vernon I. Weihe, Alton B. Moody, And Clay V. Ferguson.

Additional Contributors Are B. M. Dodson, Walter Hadel, G. G. McLintock, G. A. Patterson, R. W. Ravenhill, R. B. Michell, Ivan A. Greenwood, P. V. H. Weems, Mary R. Hunt, Norman P. Hays, John E. Knaul And J. A. Pierce.

Additional Authors Are G. G. McLintock, Alton B. Moody, Julien M. Christensen, Telfair Knight, Vincent J. Schaefer, Paul E. Wylie, B. B. Talley, L. M. Sherer, Henrietta H. Swope And John F. Heard.

Additional Contributors Are Colin H. McIntosh, B. M. Dodson, Walter Hadel, G. G. McLintock, G. A. Patterson, Fred A. Gross, British Air Ministry, Trevor A. Hoy, George W. Mixter, L. J. Comrie, And Samuel Herrick.

Additional Authors Are Virginia Withington, R. F. Farwell, Elliott B. Roberts, James L. Anast, Daniel Lineham, Ramon O. Williams, And Vernon I. Weihe.