I pushes G into F, and returns and pushes H up to G. The two cars are then coupled together, drawn down to C and pushed over to A. G is then uncoupled, and I takes H back to F and leaves it there. I then returns to G, pulls it back to E and leaves it there. I then returns to H by way of C, and draws it down to D, thus completing the task.
13. The Miter
A glance at [Fig. 20] will show how the miter can be divided into four similar parts.
CHAPTER LXII
SOME OPTICAL ILLUSIONS
When Seeing Eyes are Blind
“But, I tell you, I saw it; surely I can trust my own eyes!”
How often have we heard this uttered as a conclusive proof of some friend’s statement!
And really at first it would seem to be an assertion admitting of no further question, were it not for the fact that we know our eyes are no more infallible than anything else in this world, and are quite as liable to make mistakes as are our memories.
It is true that eyes are good and faithful servants, fit to be trusted in ninety-nine cases out of a hundred, but like all good and faithful servants there is that hundredth case when their judgment goes wandering, and when they leap to rash conclusions, carried away by deceptive appearances.