Electrical news and engineering . ales Service of the Society forElectrical Development. This article shows that there :: towns or cities in the United States where a rate of fivecents or less is charged for electric heating and cooking. Ofthis total, however, only four give a rate as low as 1 cent;three give 1J cents: forty-five give 2 cents, and the remain-ing 4,521 are higher than 2 cents. The most general rate is 3cents, which prevails in 780 towns. The employees of the Bell Telephone Co. in Montrealhave formed a society under the name of the Telephone As-sociation of Montreal, of
Electrical news and engineering . ales Service of the Society forElectrical Development. This article shows that there :: towns or cities in the United States where a rate of fivecents or less is charged for electric heating and cooking. Ofthis total, however, only four give a rate as low as 1 cent;three give 1J cents: forty-five give 2 cents, and the remain-ing 4,521 are higher than 2 cents. The most general rate is 3cents, which prevails in 780 towns. The employees of the Bell Telephone Co. in Montrealhave formed a society under the name of the Telephone As-sociation of Montreal, of which Mr. McMahon is has three main objects, dealing with education, the socialside, and sports. The programme includes lectures andsmoking concerts. The membership is free. A recent con-cert was attended by the president and all the principal offic-ials, m addition to many employees from outside the evening the MacFarlane Cup. the trophy of theBowling League, was presented to the contract lied by Mr. Catt May 1, 191J THE ELECTRICAL NEWS The Tungar Rectifier—Its Theory, Char-acteristics and Applications By Mr. F. Keith DAltorr Unindirectional currents are obtainable from alternatingcurrents by three well known methods, namely, regeneration,conversion and rectification. The first of these methods makes use of a motor-generat-or set whereby the energy supplied by alternating current tothe motor is first entirely turned into mechanical energy andthen again transformed into electrical energy and delivered asdirect current from a commutating generator. Under the heading of Conversion we consider the ac-tion of the rotary converter where electrical energy is in parti a very small part) turned into mechanical energy to keepthe armature revolving, but principally the energy is turnedfrom alternating current to direct current by the magneticrelations in the machine and the commutator on the d. c. end. Rectification differs from both of the above in th
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