Inventing for Boys

CHAPTER I

GETTING AN IDEA

Almost every one has had, at some time or other an _idea_ for a new _invention_ or of how some old _device_ could be improved.

To get an original idea for an invention is in itself a mark of genius, but it is not enough to make it a success and if you do not know how to develop it you are almost certain to give up before you have completed it.