le, and inexpensive, last-ing, when properly manufactured and connected, fromfour to five years, and requiring a little attention twiceonly during that term. As the foundation is to the house, so is the battery tothe electric bell system. These batteries may be placed inany part of the house. They… … others can, and a great many piu-poses for which crank orair bells cannot be used. They may be rung any distance,length of wire immaterial ; wiies may be run roundcornices, skirtings, under floors, underground or underplaster. As they are not pulled, consequently there is nostrain,_ rattle of…
