Athletics (British Sports Library)

106 ATHLETICS a quarter mile in about 1 minute 8 seconds, 660 yards in 1 minute 36 seconds or 1 minute 37 seconds, but none the less in training, and when the sustained effort is only to last 440 or 660 yards, strive after the ideal of a 60-second quarter and a 1-minute 35-second 660 yards.