. "Conference papers and proceedings"@en . . . "Electronic books"@en . . . . "Proceedings of the second annual fair of the Ohio Mechanics' Institute held during the third week in June, in the city of Cincinnati" . "Proceedings of the second annual fair of the Ohio Mechanics' Institute held during the third week in June, in the city of Cincinnati"@en . "Conference papers and proceedings" . . . . . . . . . . . . "Proceedings of the second annual fair of the Ohio Mechanics' Institute : held during the third week in June in the City of Cincinnati"@en . . . "Ohio Mechanics' Institute. Fair" . . . .