THREE:"Ah! you read that in the paper, sir. And, of course, you knew all about the attempt on the life of Mr. Charlton by the fair Spaniard. Well, she was seen to escape in that motor, and near the scene of the smash we found the wig. The manufacturer of the car has been seen and he is prepared to swear whom he sold it to. Therefore, knowing what we do I took the liberty of swearing an information before Sir John at Bow Street, and I've got the warrant for the arrest of Leona Lalage in my pocket. We shall get her on one charge if we fail in another."Invention, as applied to mechanical improvements, should not mean chance discovery. Such a meaning is often, if not generally, attached to the term invention, yet it must be seen that results attained by a systematic course of reasoning or experimenting can have nothing to do with chance or even discovery. Such results partake more of the nature of demonstrations, a name peculiarly suitable for such inventions as are the result of methodical purpose.