The Googler Primary Battery

The cell furnished us by the Battery Company was of the two fluid type. The exciter was sulphuric acid and zinc and the depolarizer was principally nitric acid. It resembled very much the G roove and Bunsen cells but differed in the depolarizer, which contained ferric sulphate. The carbon was placed inside the porous cup surrounded by 450 c. c. of the depolarizer. Outside this was 2,000 c. c. of sulphuric acid and a round cylinder of zinc. The mercury served the purpose of keeping the zinc amalgamated and also in making contact with the external circuit

The Hysteresis Loop

It is not proposed to introduce a new method for the determination of the hysteresis loop, but to introduce some advantageous modifications. The method is similar to the ring ballistic method outlined by Dr. R. A. Millikan. This method has the advantage over the old magnetometer method in that the lines of force are continuous through the iron. It cannot be used however if the iron is hard and causes any creeping

Characteristics and limitations of the series transformer

Cover title

Limitations of the series transformer in transient phenomena

Thesis (M.S.)--University of Illinois, 1911.Typescript