BY M. L. CAMPBELL. Yes ; I mean what I say—an automatic maid-of-all-work, invented by my husband, John Matheson. You see it was this way,—the old story of servants, ever since we began housekeeping. We’ve had every kind, and if we did get a good one, something would come along to take her off. You know John has invented lots of things. There’s that door-spring now,—not much when you look at it but it brings in quite a little income. He used to say that he was spending his spare time on an automa