Typo on page 33 & Fig 3.7

[brokndremes]

In the third paragraph, the text states: "Suppose, however, that our measurement of the width was computed in millimeters (instead of centimeters)."

However, in the previous paragraph it was stated that width was already in millimeters, and height was measured in cm. Either width should be height in the third paragraph, or width should be measured in centimeters in the 2nd paragraph. Depending on how this is phrased, figure 2 may need to be rescaled.