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   Lecture                               grey = Comment text

 1 II     |   only because the different parts of this iron are so wrought
 2 II     |     attraction between their parts), and I can show you the
 3 II     |      to and fro in different parts of the room just as I please.
 4 II     |    within them, in different parts, different degrees of cohesion,
 5 II     |      bring a strain upon the parts, and you will see what a
 6 II     |      of the strain; in these parts the force of cohesion is
 7 II     |      what it is in the other parts, and hence it allows the
 8 II     |      light come through some parts and leaves it dark in others,
 9 II     |     light goes through those parts which are hot, making dark
10 II     |     for these dark and light parts are a proof of the presence
11 III    |     able to get the separate parts of which it is composed
12 III    |    water is composed of nine parts by weight - one of hydrogen
13 III(16)|  nitrogen is composed of two parts of oxygen and one part of
14 III(16)|   part of nitrogen and three parts of oxygen.
15 IV(19) | chlorate of potash and three parts of sugar will answer. The
16 IV(23) |  minutes in a mixture of ten parts, by measure, of oil of vitriol
17 IV(23) |     oil of vitriol with five parts of strong fuming nitric
18 V      |   find in it as if they were parts of its substance; but there
19 VI     |   portions of fluid into two parts, and now we shall be able
20 VI(24) |   part of indigo and fifteen parts of concentrated oil of vitriol.