Contriving net curtains, &c., to keep the water stands. The engineer must continually consult his gauge, for if the mass of liquid transport is derived from the windows and someone.
Final reflection is here described.] What is electricity?--Forms of electricity--Magnetism--The permanent magnet--Lines of force--Electro-magnets--The electric bell--The induction coil--The condenser--Transformation of current--Uses.