'grinstone' changed to 'grindstone,' "under a grindstone, into"
Experiments of forcing water by ayer compressed:
'hol' and 'low' joined, "a round hollow ball"
Experiments of forcing water by Engins:
Full stop added after 'side,' "from it on the side. Having thus"
Experiments of producing sounds by Engins:
'de-' struck from 'de-desired,' "to expresse your desired tune"
Second 'it' struck, "it will play upon the bels"
How to make the double perpendicular glasse:
Second 'the' struck, "it will suck up the water"