Correspondence

To the Editor: Referring to the paper on Three-Phase Wattmeter Connections, by Philip Chapin Jones, published in the Journal for April 1924: For the past two years I have used and taught the Kouwenhoven Test for checking the correctness of the connections of polyphase watthour meters and, although it is not all that is to be desired from the standpoint of a rule of thumb check, it still is, in my opinion, the nearest approach to such a check that has as yet been proposed.