51�Թ�

A final twist, a glance at the revolution counter, and he was done.

I tried to steal a quick glance at my revolution counter.

In the machines they were accustomed to there was nothing but a revolution counter, and sometimes, though not always, a compass.

The watch, anemometer and revolution counter were all automatically started and stopped simultaneously.

I had nothing to do other than to give occasional attention to the revolution counter, altimetre, and speed-dial.