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54 comes across this same difficulty, since the "squint" is always small, owing to the object being very far away. Now there is one method of getting over this difficulty which I have not yet mentioned: if we could put our eyes at the end of long horns, not like those of a snail, which project forward, but horns projecting sideways a foot or two, then for both eyes to look at the same object they would have to "squint" much more than at present (Fig. 11). This is because we have made the base much bigger:

instead of being about 2 inches we have made it several feet. We have not heard of any actual men with eyes set on horns in this way: Sir John Maundevile related some wonderful "traveller's tales" in old days, when there was less chance of finding him out than there is now: he wrote

"of anthropophagi and men whose heads

Do grow beneath their shoulders,""

but I don't think he ever mentioned any race whose eyes grew on horns. Yet by means of an apparatus