Lecture

 1 I  |      another kind of power in that lamp; there is a power of heat -
 2 II |           distance."~I have here a lamp, A, shining most intensely
 3 II |        place it midway between the lamp and the screen; now look
 4 II |           of the distance from the lamp, the shadow on the large
 5 II |            if I hold it nearer the lamp at E, more light shines
 6 II |         warming it over the spirit lamp] here it is becoming yellow
 7 II |            of glass. [The electric lamp was again lit, and the beam
 8 II |          to warm this glass in the lamp, and you know yourselves
 9 II |           was warmed in the spirit lamp, and again placed across
10 III|           The heat from the spirit lamp is now being consumed, not
11 IV |           the action is over. This lamp seems to evolve heat and
12 IV |           Mr. Anderson will hold a lamp under that retort, and you
13 IV |           it warm with this spirit lamp, it will only go in the
14 IV |        Anderson has taken away his lamp; the stem of it is filling
15 V  |             and if I take a spirit lamp (this is one way of obtaining
16 V  | transferred from the flame of that lamp to the copper, and you will
17 V  |        then apply the heat of this lamp to the place where the metal
18 VI |            was ignited at a spirit lamp and introduced into a jar