Publisher's Synopsis
The reader, perhaps, as he turns over the first pages of this volume, is puzzled, right at the outset, with the meaning of my title, The Diving Bell. It is plain enough to Uncle Frank, and possibly it is to you; but it may not be; so I will tell you what a diving bell is, and then, probably, you can guess the reason why I have given this name to the following pages. If you will take a common glass tumbler, and plunge it into water, with the mouth downwards, you will find that very little water will rise into the tumbler. You can satisfy yourself better about this matter, if, in the first place, you lay a cork upon the surface of the water, and then put the tumbler over it. Did you ever try the experiment? Try it now, if you never have done so, and if you have any doubt on the subject.
