1. Hold up a page of this book, and see how far off you can read it. If at 60 inches, measured with a tapeline from your eye to the book, then your eye number is 60, which is remarkably good. Very few get as high as 70.
2. Now go out at night and see how many Pleiades you can count; see Tale 52. If you see a mere haze, your star number is 0; if you see 4 little pin points in the haze, your number is 8; if you see 6, your number is 12. If you see 7 your number is 14; and you will not get beyond that.
3. Now look for the Pappoose on the Squaw's back, as in Tale 50. If you do not see it, you score nothing. If you can see it, and prove that you see it, your number is 14 more.
Now add up these, thus: 60 plus 14 plus 14; this gives 88 as your farsight number. Anything over 60 means you can see like a hawk.