with all our scientific knowledge, we know that we are just entering on the borders of a vast and inexhaustible question—a question of investigation of such unfathomable magnitude—that I believe tens of thousands of years after our day, even allowing that science and intelligence advance with greater strides than they ever have done, the finite mind of humanity can never grow to be large enough or noble enough to be able to conceive the magnitude of space. No, my Specimen, we must leave that to the mind infinite." Again we started forward at the same rapid pace, never tired, never weary, always pressing onward, until at last we arrived at the top of a great hill, covered by a very large building. "This is our local Observatory," said the Recorder; "you will see from the numbers of visitors that come and go that we make our observatories quite an institution. In fact, as you will see, we make the greatest practical use of the moon; we communicate with all parts of the world by its assistance. We know exactly by tables at
