It was now the Season that these Birds take their Flight away, as our Cuckows and Swallows do in _Spain_ towards _Autumn_, and as I afterwards found, being mindful of their usual Voyage, just when I began to settle myself to take them in, they with one Consent rose up, and having no other higher Place to make toward, to my unspeakable Fear and Amazement, struck bolt upright, and never left towring upward, still higher and higher, for the Space, as I guest, of an Hour, after which I thought they laboured less than before, till at length, ah wonderful! they remained immoveable, as steadily as if they had sat upon so many Perches; the Lines slacked, neither I, nor the Engine moved at all, but continued still, as having no Manner of Weight. I found then by Experience, what no Philosopher ever dreamt of, namely, that those Things we call heavy do not fall towards the Center of the Earth as their natural Place, but are drawn by a secret Property of the Globe of the Earth, or rather something within it, as the Load-stone draweth Iron, which is within the Compass of its attractive Beams. For though my Gansas could continue unmoved, without being sustained by any Thing but the Air, as easily and quietly as a Fish in the Water, yet if they forced themselves never so little, it is impossible to imagine with what Swiftness they were carried, either Upward, Downward, or Sideways; I must ingenuously confess my Horror and Amazement in this Place was such, that had I not been armed with a true _Spanish_ Resolution, I should certainly have died for Fear.