CLASS OF 1895

The two new books by Prof. F. E. Austin on transformer construction are meeting with success in the United States and Canada, and sales are increasing in England. The books are finding favor with technical and industrial high schools, with those pursuing correspondence courses, and with regular college students. The smaller book is designed for amateurs who desire to make their own small low-pressure transformers for experimental purposes, these being so designed as to be connected with the ordinary electric light circuits, giving reduced pressures for operating small arc lights and motors, for ringing bells, charging storage batteries, electric welding, and for all experimenting requiring primary cells. The larger book is designed for those, who desire to construct high-pressure transformers, from 4,000 to 20,000 volts, having their primaries connected with ordinary house circuits, for operating wireless telegraph apparatus, X-ray tubes, vacuum lamps, and all devices requiring high pressures. The value of the books is attested by the many favorable reviews given by technical magazines.

Secretary, Ernest S. Gile, 183 Essex St., Boston