On the other hand, such study would reveal many cases of undoubted fraudulent intent, as well as many bold attempts to deprive the inventor of the fruits of his endeavors by those who have sought to evade, through subtle technicalities of the law, the penalty justly due them for trickery, evasion, or open contempt of the rights of others.

In the history of science and of the arts to which the world has owed its continued progress from year to year there is disclosed one remarkable fact, and that is, that whenever any important discovery or invention has been made and announced by one man, it has almost always been disclosed later that other men --possibly widely separated and knowing nothing of the other's work--have been following up the same general lines of investigation, independently, with the same object in mind. Their respective methods might be dissimilar while tending to the same end, but it does not necessarily follow that any one of these other experimenters might ever have achieved the result aimed at, although, after the proclamation of success by one, it is easy to believe that each of the other independent investigators might readily persuade himself that he would ultimately have reached the goal in just that same way.