Additional information on the author F.J.L. Kett.

Additional information on the author F.G. Kaltwasser.

Additional information on the author F.D. De Moroda.

Additional information on the author F. Stimpson.

Additional information on the author F. Kredel.

Additional information on the author F. de Marez Oyens.

Additional information on the author F. Brittain.

Additional information on the author Eugene Umberger.

Additional information on the author Eugene D. Le Mire.

Additional information on the author Essick & Paley.