Lecture

  1 I  |          suppose I then pull this piece of string which is attached
  2 I  |        just now to pull over this piece of paper. I will not embarrass
  3 I  |          here [exhibiting a small piece of platinum2] is another
  4 I  |     ourselves.~If a gold leaf, or piece of thread, or any other
  5 I  |  shell-lac which I rubbed and the piece of paper which was overturned
  6 I  |       will take as illustration a piece of marble. Now this marble
  7 I  |          bit of paper? [placing a piece of paper in the opposite
  8 I  |         of paper [placing another piece of paper in]. And thus you
  9 I  |      before us, and I then take a piece of thread and an ivory ball,
 10 I  |          is effected by putting a piece of lead inside the lower
 11 I  |        Now I have here a table, a piece of stick, and a pail, and
 12 I  |         bottom and the horizontal piece of wood, and thus give it
 13 I  |           a boy. I used to take a piece of cork (and I remember
 14 I  |          be able to see that this piece of paper and that ivory
 15 I  |       time of the fall. Here is a piece of gold leaf. Now if I take
 16 I  |       very much where we have the piece of gold so extended and
 17 I  |         excluded; for if I take a piece of gold leaf and hang it
 18 I  |       will swing as steadily as a piece of iron would do; and I
 19 I  |       illustration: I have hung a piece of gold leaf in the upper
 20 I  |           same kind. Take a penny piece, or a half crown, and a
 21 I  |           half crown, and a round piece of paper a trifle smaller
 22 I  |        say, if I were to put this piece of gold leaf, instead of
 23 II |       screen B F (merely a square piece of card), which, as you
 24 II |           illustrate. If I take a piece of flint, and strike it
 25 II |           it thus [breaking off a piece of the flint], I have done
 26 II |          particles; for here is a piece of glass (for what was true
 27 II |        bar of iron is true of the piece of glass, and is true of
 28 II |       stone, and thus get a clean piece of lead (this is a better
 29 II |       squeeze, and draw the upper piece slightly round at the same
 30 II |          more of it [exhibiting a piece of paper as large as the
 31 II |         when I tell you that this piece of common charcoal is just
 32 II |           a specimen outside of a piece of straw which was charred
 33 II |          of cohesion.~ ~Here is a piece of glass [producing a piece
 34 II |       piece of glass [producing a piece of plate-glass about two
 35 II |            I will now break off a piece of this. [The lecturer nipped
 36 II |       lecturer nipped off a small piece from the end of one of Rupert'
 37 II |          glass vessels and drop a piece of pounded glass into it (
 38 II |        the flint when I broke the piece off; a piece of a similar
 39 II |          I broke the piece off; a piece of a similar kind would
 40 II |            for instance [taking a piece of mica12], and if I hammer
 41 II |       common salt is13; here is a piece of this salt, which by natural
 42 II |       what happens if I take this piece of salt and break it. It
 43 II |        the same result. Here is a piece which I have broken off,
 44 II |   recommend each of you to take a piece home, and then you can take
 45 II |         the middle of a body this piece of glass. We perceive the
 46 II |           light downward, and the piece of silver and the sealing-wax
 47 II |         small silver dishes and a piece of sealing-wax which I have
 48 II |         now goes to you from that piece of silver was obstructed
 49 II |           how it may be bent by a piece of glass. [The electric
 50 II |       send the light through this piece of plain glass, A, it goes
 51 II |  complicated); but if I take this piece of glass, B [a prism], you
 52 II |  wonderfully and beautifully that piece of glass not only bends
 53 II |           to understand that this piece of glass [the prism], being
 54 II |       first of all, I will take a piece of mica. Here, you see,
 55 II |         the first instance, put a piece of common glass into the
 56 II |           glass was removed and a piece of mica introduced.] Now
 57 II |        you going to take a little piece home. [The mica was removed,
 58 II |           mica was removed, and a piece of calc-spar introduced
 59 II |          experiment. Here is that piece of glass which before had
 60 II |         similar effect. Here is a piece of common glass, and if
 61 III|      altogether. I will take this piece of iron [a rod of iron about
 62 III|        know how the smith takes a piece of iron and heats it in
 63 III|         make a vessel out of this piece of tinfoil [bending the
 64 III|        put a little water on this piece of plate glass, and then
 65 III|         paper would not do, but a piece of linen cloth would, or
 66 III|          indeed happened with our piece of ice here), that we did
 67 IV |          respect; for if I take a piece of platinum of that size,
 68 IV |          clean silver spoon (or a piece of clean tin will do), and,
 69 IV |          see the difference. [The piece of charcoal was ignited,
 70 IV |        burning in oxygen. Well, a piece of lead will burn in oxygen
 71 IV |       better, for absolutely that piece of lead will act at once
 72 IV |       chlorine. And here, also, a piece of iron - if I light it
 73 IV |           lead poured out on to a piece of paper, whereupon it immediately
 74 IV |    chemical affinity. If I take a piece of phosphorus and set fire
 75 IV | phosphorus will go out. Here is a piece of camphor, which will burn
 76 IV |          action in this way: this piece of cotton wool burns, as
 77 IV |        suppose I set fire to this piece of cotton which is rolled
 78 IV |          burns [setting fire to a piece]; it is very different from
 79 IV |         and then placed on them a piece of phosphorus, which immediately
 80 IV |           a cork, and rub it on a piece of soft deal wood, you will
 81 V  |           For instance, here is a piece of shellac, having the attraction
 82 V  |          I rub the shellac with a piece of flannel [rubbing the
 83 V  |      glass rod, and rub it with a piece of silk covered with what
 84 V  |    another fact. I will take this piece of shellac, and make it
 85 V  |           Now I will suspend this piece of excited shellac in a
 86 V  |           and I will take another piece of shellac, and, after rubbing
 87 V  |      extent of driving this heavy piece of shellac round and round
 88 V  |         way. But if I excite this piece of shellac as before, and
 89 V  |          as before, and take this piece of glass and rub it with
 90 V  |         suppose I take this other piece of shellac, and take away
 91 V  |        hand; and suppose I take a piece of flannel, which I have
 92 V  |           and now, if you place a piece of flat glass upon that,
 93 V  |         round; and if I take this piece of sealing-wax and rub it
 94 V  |          for I have, with a small piece of sealing-wax and my coat,
 95 V  |         electrical; and here is a piece which clings to any thing
 96 V  |         will attract a very large piece of iron. That, then, is
 97 V  |          can try what action this piece of iron has on it. Well,
 98 V  |          But if now, instead of a piece of iron, I take a magnet,
 99 V  |          now, if I break out that piece (n, s), and then examine
100 V  |         matters. I can not make a piece of iron or any thing else
101 V  |       have only now to touch this piece of gun-cotton with the hot
102 V  |           at the ends, and wrap a piece of paper round, and then
103 V  |       burned. And so, if I take a piece of wood and a piece of metal
104 V  |        take a piece of wood and a piece of metal joined together,
105 V  |          the wood; for if I put a piece of phosphorus on the wood
106 V  |           on the wood and another piece on the copper, you will
107 V  |          show you. If I take this piece of brass and bring it near
108 V  |         too much, but if I take a piece of metal and bring it against
109 VI |      first place, then, here is a piece of fine zinc foil, and if
110 VI |         have to do is to hold the piece of zinc at the side of the
111 VI |        access to it; there is the piece of zinc burning just like
112 VI |          zinc burning just like a piece of wood, only brighter.
113 VI |    solution of copper. If I put a piece of this amalgamated zinc
114 VI |        instead of the platinum, a piece of copper or of silver,
115 VI |           instance. I will take a piece of the metal silver, and
116 VI |   brilliantly it burns! Here is a piece of iron on the charcoal:
117 VI |           observe this; here is a piece of wire which I am about