Publications for 10/1890
Knapp sells Perkins lamps
Bradley Fiske's range finder
Englund's curve insulator
General Greely's hornet infested cone-shaped insulator
Isaac Wormser was charged with violating factory laws
Greely's Telegraph Line
Claude Matthews is a brother-in-law of Ralph Hemingray, will make speech near glassworks
Rae system of electrical railways described
Ralph Gray Hemingray - Mrs. Robert Carroll Hemingray
Mrs. Robert Hemingray & family are visiting at Covington
Emmet Trolley insulator
Gould & Watson exhibited
Gould & Watson published catalogue
Mrs. Pretlow entertained with card party attended by Mrs. Ralph Hemingray, Mrs. Bradford Shinkle, Mrs. Dan Hemingray & Miss Matthews
Foree Bain is in Minneapolis
Knapp is very busy