My young friends, Some
months ago the Directors of this Institution honoured
me with a request that I should deliver a course of
Christmas Juvenile Lectures. I must admit I did
my best to shirk the task, feeling that the duty would
be better intrusted to one who had fewer demands upon
his time. It was under the genial influence of
a bright summer’s afternoon, when one thought
Christmas-tide such a long way off that it might never
come, that I consented to undertake this course of
lectures. No sooner had I done so than I was
pressed to name a subject. Now it is a very difficult
thing to choose a subject, and especially a subject
for a course of juvenile lectures; and I will take
you thus much into my confidence by telling you that
I selected the subject upon which I am to speak to
you, long before I had a notion what I could make of
it, or indeed whether I could make anything at all
of it. I mention these details to ask you and
our elders who honour us you and me with
their company at these lectures, for some little indulgence,
if at times the story I have to tell proves somewhat
commonplace, something you may have heard before,
a tale oft told. My sole desire is that these
lectures should be true juvenile lectures.
Well, you all know what this is? [Holding
up a box of matches.] It is a box of matches.
And you know, moreover, what it is used for, and how
to use it. I will take out one of the matches,
rub it on the box, and “strike a light.”
You say that experiment is commonplace enough.
Be it so. At any rate, I want you to recollect
that phrase “strike a light.”
It will occur again in our course of lectures.
But, you must know, there was a time when people wanted
fire, but had no matches wherewith to procure it.
How did they obtain fire? The necessity for, and
therefore the art of producing, fire is, I should
suppose, as old as the world itself. Although
it may be true that our very earliest ancestors relied
for necessary food chiefly on an uncooked vegetable
diet, nevertheless it is certain that very early in
the history of the world people discovered that cooked
meat (the venison that our souls love) was a thing
not altogether to be despised. Certainly by the
time of Tubal Cain, an early worker in metals, not
only the methods of producing fire, but also the uses
to which fire could be applied, must have been well
understood. Imagine the astonishment of our ancestors
when they first saw fire! Possibly, the first
sight of this wonderful “element” vouchsafed
to mortals was a burning mountain, or something of
that kind. One is scarcely astonished that there
should have been in those early times a number of
people who were professed fire-worshippers. No
wonder, I say, that fire should have been regarded
with intense reverence. It constituted an essential
part of early sacrificial worship. Some of my
young friends, too, may remember how in ancient Rome
there was a special order (called the order of the
Vestal Virgins), whose duty it was to preserve the
sacred fire, which if once extinguished, it was thought
would bring ruin and destruction upon their city.
How did our ancestors, think you,
obtain fire in those early times? I suggested
a burning mountain as a source of fire. You remember,
too, perhaps reading about Prometheus, who stole fire
from heaven, bringing it to earth in a copper rod,
which combined act of theft and scientific experiment
made the gods very angry, because they were afraid
mortals might learn as many wonderful things as they
knew themselves. History seems to show that the
energetic rubbing together of dry sticks was one of
the earliest methods adopted by our ancestors for producing
fire. I find, for instance, described and pictured
by an early author some such plan as the following: A
thick piece of wood was placed upon the ground.
Into a hole bored in this piece of wood a cone of wood
was fitted. By placing a boy or man on the top
of the cone, and whirling him round, sufficient friction
resulted where the two pieces of wood rubbed one against
the other to produce fire. Our artist has modernized
the picture to give you an idea of the operation (Fi. Now instead of repeating that experiment
exactly, I will try to obtain fire by the friction
of wood with wood. I take this piece of boxwood,
and having cut it to a point, rub it briskly on another
piece of wood (Fi. If I employ sufficient
energy, I have no doubt I may make it hot enough to
fire tinder. Yes! I have done so, as you
see. (I will at once apologize for the smoke.
Unfortunately we cannot generally have fire without
smoke.) Every boy knows that experiment in another
form. A boy takes a brass button, and after giving
it a good rub on his desk, applies it to the cheek
of some inoffensive boy at his side, much to the astonishment
of his quiet neighbour. Well, I am going to see
whether I can produce fire with a brass button.
I have mounted my button, as you see, for certain
reasons on a cork, and I will endeavour by rubbing
the button on a piece of pinewood to make it sufficiently
hot to fire tinder. Already I have done so.
Talking about friction as a means
of producing heat, I should like to mention that at
the last Paris Exhibition I saw water made to boil,
and coffee prepared from it, by the heat resulting
from the friction of two copper plates within the
liquid.
That then is the earliest history
I can give you of the production of fire, and at once
from that history I come to the reign of the tinder-box.
The tinder-box constitutes one of the very earliest
methods, no doubt, of obtaining fire. I have
searched for some history of the tinder-box, and all
I can say for certain is that it was in use long before
the age of printing. I have here several rare
old tinder-boxes. I intend showing you in the
course of these lectures every detail of their construction
and use. I have no doubt this very old tinder-box
that you see here (Fi A) was once upon a time
kept on the mantel-piece of the kitchen well polished
and bright, and I do not doubt but that it has lit
hundreds and thousands of fires, and, what is more,
has very often been spoken to very disrespectfully
when the servant wanted to light the fire, and her
master was waiting for his breakfast. I will project
a picture of it on the screen, so that you may all
see it. There it is. It is a beautiful piece
of apparatus. There is the tinder, the steel
(Fi b), the flint (c), and the matches
(d) complete.
It was with this instrument, long
before the invention of matches, that our grandfathers
obtained light. I want to show you how the trick
was managed. First of all it was necessary to
have good tinder. To obtain this, they took a
piece of linen and simply charred or burnt it, as you
see I am doing now (Fi. (Cambric, I am told, makes
the best tinder for match-lighting, and the ladies,
in the kindness of their hearts, formerly made a point
of saving their old cambric handkerchiefs for this
purpose.) The servants prepared the tinder over-night,
for reasons I shall explain to you directly.
Having made the tinder, they shut it down in the box
with the lid (Fi A) to prevent contact with air.
You see I have the tinder now safely secured in my
tinder-box. Here is a piece of common flint,
and here is the steel. Here too are the matches,
and I am fortunate in having some of the old matches
made many years ago, prepared as you see with a little
sulphur upon their tips. Well, having got all
these etceteras, box, tinder, flint and steel, we set
to work in this way: Taking the steel in
one hand, and the flint in the other, I must give
the steel a blow, or rather a succession of blows
with the flint (Fi B). Notice what beautiful
sparks I obtain! I want one of these sparks,
if I can persuade it to do so, to fall on my tinder.
There! it has done so, and my tinder has caught fire.
I blow my fired tinder a little to make it burn better,
and now I apply a sulphur match to the red-hot tinder.
See, I have succeeded in getting my match in flame.
I will now set light to one of these old-fashioned
candles a rushlight with which
our ancestors were satisfied before the days of gas
and electric lighting. This was their light, and
this was the way they lighted it. No wonder (perhaps
you say) that they went to bed early.
I should like to draw your attention
to one other form of tinder-box, because I do not
suppose you have ever seen these kind of things before.
I have here two specimens of the pistol form of tinder-box
(Fi. Here is the flint, the tinder being
contained in this little box. It is the same
sort of tinder as we made just now. The tinder
was fired with flint and steel in the same way as
the old-fashioned flint pistols fired the gunpowder.
And you see this pistol tinder-box is so constructed
as to serve as a candlestick as well as a tinder-box.
I have fired, as you perceive, my charred linen with
this curious tinder-box, and thus I get my sulphur
match alight once more!
It was in the year 1669 that Brandt,
an alchemist and a merchant a very distinguished
scientific man discovered the remarkable
substance I have here, which we call phosphorus.
Brandt was an alchemist. I do not know whether
you know what an alchemist is. An alchemist was
an old-fashioned chemist. These alchemists had
three prominent ideas before them. The first
thing they sought for was to discover a something a
powder they thought it ought to be that
would change the commoner or baser metals (such as
iron) into gold. The second idea was to discover
“a universal solvent,” that is, a liquid
which would dissolve everything, and they hoped out
of this liquid to be able to crystallize gems.
And then, having obtained gold and gems, the third
thing they desired was “a vital elixir”
to prolong their lives indefinitely to enjoy the gold
and gems they had manufactured. These were the
modest aims of alchemy. Well now although
you may say such notions sound very foolish let
me tell you that great practical discoveries had their
origin in the very out-of-the-way researches of the
alchemists. Depend upon this, that an object
of lofty pursuit, though that object be one of practically
impossible attainment, is not unworthy the ambition
of the scientific man. Though we cannot scale
the summit of the volcanic cone, we may notwithstanding
reach a point where we can examine the lava its fires
have melted. We may do a great deal even in our
attempt to grasp the impossible. It was so with
Brandt. He was searching for a something that
would change the baser metals into gold, and, in the
search, he discovered phosphorus. The chief thing
that struck Brandt about phosphorus was its property
of shining in the dark without having previously been
exposed to light. A great many substances were
known to science even at that time that shone in the
dark after they had been exposed to light.
But it was not until Brandt, in the year 1669, discovered
phosphorus that a substance luminous in the dark, without
having been previously exposed to light, had been observed.
I should like, in passing, to show you how beautifully
these phosphorescent powders shine after having been
exposed to a powerful light. See how magnificently
brilliant they are! These, or something like them,
were known before the time of Brandt.
Shortly after phosphorus had been
discovered, people came to the conclusion that it
might be employed for the purpose of procuring artificial
light. But I want you to note, that although phosphorus
was discovered in 1669 (and the general properties
of phosphorus seem to have been studied and were well
understood within five years of its discovery), it
was not until the year 1833 that phosphorus matches
became a commercial success, so that until the year
1833, our old friend the tinder-box held its ground.
I will try and give you as nearly as I can a complete
list of the various attempts made with the purpose
of procuring fire between the years 1669 and 1833.
The first invention was what were
called “phosphoric tapers.” From the
accounts given (although it is not easy to understand
the description), phosphoric tapers seem to have been
sulphur matches with a little piece of phosphorus
enclosed in glass fixed on the top of the match, the
idea being that you had only to break the glass and
expose the phosphorus to air for it to catch fire
immediately and ignite the sulphur. If this was
the notion (although I am not sure), it is not easy
to understand how the phosphoric tapers were worked.
The second invention for the purpose of utilizing
phosphorus for getting fire was by scraping with a
match a little phosphorus from a bottle coated with
a phosphorus composition, and firing it by friction.
The fact is, phosphorus may be easily ignited by slight
friction. If I wrap a small piece of phosphorus
in paper, as I am doing now, and rub the paper on
the table, you see I readily fire my phosphorus.
After this, “Homberg’s
Pyrophorus,” consisting of a roasted mixture
of alum and flour, was suggested as a means of obtaining
fire. Then comes the “Electrophorus,”
an electrical instrument suggested by Volta, which
was thought at the time a grand invention for the purpose
of getting light (Fi A). The nuisance about
this instrument was that it proved somewhat capricious
in its action, and altogether declined to work in
damp foggy weather. I do not know whether I shall
be successful in lighting a gas-jet with the electrophorus,
but I will try. I excite this plate of resin
with a cat-skin (Fi B), then put this brass plate
upon the resin plate and touch the brass (Fi C);
then take the brass plate off the resin plate by the
insulating handle and draw a spark from it, which
I hope will light the gas. There, I have done
it! (Fi D.)
Well, next after the electrophorus
comes the “fire syringe” (Fi.
The necessary heat in this case is produced by the
compression of air. You see in this syringe stopped
at one end, I have a certain quantity of air.
My piston-rod (C) fits very closely into the syringe
(B), so that the air cannot escape. If I push
the piston down I compress the air particles, for
they can’t get out; I make them in
fact occupy less bulk. In the act of compressing
the air I produce heat, and the heat, as you see,
fires my tinder.
It was in or about the year 1807 that
“chemical matches” were introduced to
the public for the first time. These chemical
matches were simply sulphur matches tipped with a
mixture of chlorate of potash and sugar. These
matches were fired by dipping them in a bottle containing
asbestos moistened with sulphuric acid. Here
is one of these “chemical matches,” and
here the bottle of asbestos and sulphuric acid.
I dip the match into the bottle and, as you see, it
catches fire.
In the year 1820, Dobereiner, a very
learned man, discovered a method of getting fire by
permitting a jet of hydrogen to play upon finely-divided
platinum. The platinum, owing to a property it
possesses in a high degree (which property however
is not special to platinum), has the power of coercing
the union of the hydrogen and oxygen. Here is
one of Dobereiner’s original lamps (Fi.
I am going to show you the experiment, however, on
a somewhat larger scale than this lamp permits.
Here I have a quantity of fine platinum-wire, made
up in the form of a rosette. I place this over
the coal-gas as it issues from the gas-burner, and,
as you see, the platinum begins to glow, until at last
it becomes sufficiently hot to fire the gas (Fi.
In the year 1826 what were called
“lucifers” were invented, and I show you
here some of the original “lucifers.”
They are simply sulphur matches tipped with a mixture
of chlorate of potash and sulphide of antimony, and
were ignited by drawing them briskly through a little
piece of folded glass-paper.
In the year 1828, “Prometheans”
were invented. I have here two of the original
“Prometheans.” They consist (as you
see) of a small quantity of chlorate of potash and
sugar rolled up tightly in a piece of paper.
Inside the paper roll is placed a small and sealed
glass bubble containing sulphuric acid. When
it was wanted to light a “Promethean”
you had only to break the bulb of sulphuric acid, the
action of which set fire to the mixture of chlorate
of potash and sugar, which ignited the paper roll.
In the year 1830 “matches”
with sulphur tips were introduced as a means of obtaining
fire. They were fired, so far as I can make out,
by dipping them into a bottle containing a little
phosphorus, which then had to be ignited by friction.
So far as I know, I have now given
you very shortly the history of obtaining fire between
the years 1669 and 1830. You see how brisk ingenuity
had been during this long period, and yet nothing ousted
our old friend the tinder-box. The tinder-box
seems, as it were, to speak to us with a feeling of
pride and say, “Yes, all you have been talking
about were the clever ideas of clever men, but I lived
through them all; my flint and my steel were easily
procured, my ingredients were not dangerous, and I
was fairly certain in my action.”
In the year 1833 the reign of the
tinder-box came to an end. It had had a very
long innings many, many hundred years; but
in 1833 its reign was finished. It was in this
year the discovery was announced, that bone could
be made to yield large quantities of phosphorus at
a cheap rate. Originally the price of phosphorus
was sufficient to prevent its every-day use.
Hanckwitz thus advertises it “For
the information of the curious, he is the only one
in London who makes inflammable phosphorus that can
be preserved in water. All varieties unadulterated.
Sells wholesale and retail. Wholesale, 50s. per
oz.; retail, L3 sterling per oz. Every description
of good drugs. My portrait will be distributed
amongst my customers as a keepsake.”
Let me give you a brief account of
the method of preparing lucifer matches, and
to illustrate this part of my story, I am indebted
to Messrs. Bryant and May for specimens. Pieces
of wood are cut into blocks of the size you see here
(Fi A). These blocks are then cut into little
pieces, or splints, of about one-eighth of an inch
square (Fi b). By the bye, abroad they usually
make their match splints round by forcing them through
a circular plate, pierced with small round holes.
I do not know why we in England make our matches square,
except for the reason that Englishmen are fond of
doing things on the square. The next part of
the process is to coat the splints with paraffin or
melted sulphur. The necessity for this coating
of sulphur or paraffin you will understand by an experiment.
If I take some pieces of phosphorus and place them
upon a sheet of cartridge paper, and then set fire
to the pieces of phosphorus, curiously enough, the
ignited phosphorus will not set fire to the paper.
I have taken five little pieces of phosphorus (as
you see), so as to give the paper every chance of
catching fire (Fi. Now that is exactly what
would happen if paraffin (or some similarly combustible
body) was not placed on the end of the splint; my
phosphorus would burn when I rubbed it on the box,
but it would not set fire to the match. It is
essential, therefore, as you see, in the first instance,
to put something on the match that the ignited phosphorus
will easily fire, and which will ignite the wood.
I will say no more about this now, as I shall have
to draw your attention to the subject in another lecture.
The end of the splints are generally scorched by contact
with a hot plate before they are dipped in the paraffin,
after which the phosphorus composition is applied to
the match. This composition is simply a mixture
of phosphorus, glue, and chlorate of potash.
The composition is spread upon a warm plate, and the
matches dipped on the plate, so that a small quantity
of the phosphorus mixture may adhere to the tip of
the match. Every match passes through about seventeen
people’s hands before it is finished. I
told you that in England we generally use chlorate
of potash in the preparation of the phosphorus composition,
whilst abroad nitrate of potash is usually employed.
You know that when we strike a light with an English
match a slight snap results, which is due to the chlorate
of potash in the match. In the case of nitrate
of potash no such snapping noise occurs. Some
people are wicked enough to call them “thieves’
matches.” Just let me show you (in passing)
how a mixture of chlorate of potash and sulphur explodes
when I strike it.
Now, then, comes a very remarkable
story to which I desire to draw your attention.
There were many disadvantages in the use of this yellow
phosphorus. First of all, it is a poisonous substance;
and what is more, the vapour of the phosphorus was
liable to affect the workpeople engaged in the manufacture
of lucifer matches with a bad disease of the jaw,
and which was practically, I am afraid, incurable.
A very great chemist, Schroetter, discovered that
phosphorus existed under another form, some of which
I have here. This, which is of a red colour, was
found to be exactly the same chemical substance as
the yellow phosphorus, but possessing in many respects
different properties. For instance, you see I
keep this yellow phosphorus under water; I don’t
keep the red phosphorus in water. Amongst other
peculiarities it was found that red phosphorus was
not a poison, whilst the yellow phosphorus was, as
I told you, very poisonous indeed. About two
to three grains of yellow phosphorus is sufficient
to poison an adult. I have known several cases
of children poisoned by sucking the ends of phosphorus
matches. So you see it was not unimportant for
the workpeople, as well as for the public generally,
that something should be discovered equally effective
to take the place of this poisonous yellow phosphorus.
I should like to show you what very
different properties these two kinds of phosphorus
possess. For instance, if I take a small piece
of the yellow phosphorus and pour upon it a little
of this liquid bi-sulphide of carbon and
in another bottle treat the red phosphorus in a similar
way, we shall find the yellow phosphorus is soluble
in the liquid, whilst the red is not. I will
pour these solutions on blotting-paper, when you will
find that the solution of the yellow phosphorus will
before long catch fire spontaneously (Fi A), whilst
the solution (although it is not a solution, for the
red phosphorus is not soluble in the bi-sulphide of
carbon) of the red phosphorus will not fire (Fi
B). Again, if I add a little iodine to the yellow
phosphorus, you see it immediately catches fire (Fi a); but the same result does not follow with the
red phosphorus (Fi b). I will show you an
experiment, however, to prove, notwithstanding these
different properties, that this red and yellow material
are the same elementary body. I will take a little
piece of the yellow phosphorus, and after igniting
it introduce it into a jar containing oxygen, and I
will make a similar experiment with the red phosphorus.
You will notice that the red phosphorus does not catch
fire quite so readily as the yellow. However,
exactly the same result takes place when they burn you
get the same white smoke with each, and they combust
equally brilliantly. The red and yellow varieties
are the same body that is what I want to
show you with different properties.
Then comes the next improvement in
the manufacture of matches, which is putting the phosphorus
on the box and not on the match. This is why the
use of red phosphorus, was introduced into this country
by Messrs. Bryant and May. I have no doubt that
many a good drawing-room paper has been spared by
the use of matches that light only on the box.
I cannot help thinking that the old
tinder-box, which I have placed on the table in a
prominent position before you to-night, feels a certain
pleasure in listening to our story. Envious perhaps
a little of its successor, it nevertheless fully recognizes
that its own reign had been a thousand times longer
than that of the lucifer match. If we could
only hear that tinder-box talk, I think we should
find it saying something of this kind to the lucifer
match “I gave way to you, because
my time was over; but mind, your turn will come next,
and you will then have to give way to something else,
as once upon a time I had to give way to you.”
And that is the end of the first chapter of my story
of a tinder-box.