**MODERN GEOMETRIES**

p. 18 Exercise 1(b). The division symbols should be radical signs (*) and the letter rho should be pi.

p. 25 Figure 3.6. Some of the gray horizontal and vertical lines do not show up. There are four more located a distance .5 from the origin in both positive and negative directions along both coordinate axes.

p. 27 Figure 3.8. The letters p and q below the x-axis should be primed.

p.44 In the formula, the second equal should be a minus sign and the second q should be r.

p.114. The following text is missing at the top of the page: "6. In Euclidean geometry the limit of a sequence of circles of larger and larger radius can be a straight line. For example, the limit of."

p.130 Exercise 2. R should be the reciprocal of *|k|.