A battery can be tested with it with as much accuracy as any hydrometer on the market. The specific gravity of each ball is accurate to the fourth decimal point. It can be “read” in semi-darkness.
Is only 6½ inches long and designed so that it can be carried in the tool box where it is Always Handy—A mighty big value for only 75c.
Furnished to the Dealer in an attractive counter display box, one dozen to each package. When placed on the counter it sells itself.
Write for dealers' prices and details on this fast selling article.
PRICES SUBJECT TO CHANGE WITHOUT NOTICE
AND NOW—
You have been reading how to increase the profits of your shop through the use of materials previously wasted. There is another way of stopping leaks and increasing earnings. That is by making the best possible use of every man's time.
In this connection we would like to tell you briefly about the activities of the Educational Division of the American Bureau of Engineering, Inc.