Electrical influence machines. / Their historical development and modern forms, with instructions for making them. By John Gray.
by Edition: 2d ed., rev. and enl. / With 105 illustrations.Material type: Book; Format:
; Literary form:
Publisher: London ; New York : Whittaker and co., 1903Availability: Items available for reference: Science Museum Wroughton [Call number: 621.319.3 GRAY] (1).