Page 5, line 1: the word "truck" should be tank.

Page 8, Plate 1, Figure 1: the letter A should appear at side of figure at contact of black and light gray horizons.

Page 8, Plate 1, Figure 2: the two black horizons should be labelled A and B, B being the higher and marked "Sand."

Page 8, Plate 1, Figure 3, and Page 9, Plate 2, Figures 4 and 5: the five black horizons shown should be labelled A, B, C, D, and E, beginning with the bottom black horizon; in each figure the horizon marked "Sand" is horizon B.

Page 11, Plate 3, Figure 6: of the two broken black lines extending up and over the dome, the lower should be labelled A and the higher, B. The upper surface of the horizon marked "Sand" should be labelled C.

Page 11, Plate 3, Figure 7: the two thin black horizons at the base of the horizons marked "Sand" are A for the lower and B for the higher.

Page 11, Plate 3, Figure 8: the contact of the black and gray horizons at the middle of the section is A.

Page 13, Plate 4, Figures 9 and 10: the five black horizons extending all the way across the sections are A, B, C, D, E, respectively, from bottom upward.

Page 397, lines 21 and 29: "Far" should be Fars.

Page 398, Table I, column 1: "Far" should be Fars.

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