How to make the treble perpendicular glasse:

Heading added, "How to make the treble perpendicular glasse."

A Water-clock, or a Glasse shewing the houre of the day:

'K, G, G' changed to 'E, F, G,' "the length of the glasse E, F, G"

Second Booke

A Receipt of a Composition that will kindle with the water:

'limekill' changed to 'limekiln,' "set it in a limekiln"

Second "Another." heading added.

How to make Balloones, also the morter Peece to discharge them:

Full stop and comma exchanged, "with its portfire, O."