THE DISCOVERY OF LITHOGRAPHY.

The invention, or more properly the discovery, of lithography, claims a

high rank among those of the present age, on account of its extensive

usefulness. The honour of the invention belongs to Alois Sennefelder,

originally a performer at the Theatre Royal of Munich. He had conceived

the idea of etching on stone instead of on copper, and was proceeding to

make the experiment, when an accidental discovery gave a more beneficial

turn to his speculations. The discovery, which was that of the

lithographic art, has been thus narrated by Sennefelder himself:--

"I had just succeeded, in my little laboratory, in polishing a stone

plate, which I intended to cover with etching ground, when my mother

entered the room, and desired me to write her a bill for the

washerwoman, who was waiting for the linen. I happened not to have even

the smallest slip of paper at hand, as my little stock of paper had been

entirely exhausted by taking proof impressions from the stones; nor was

there even a drop of ink in the ink-stand. As the matter would not admit

of delay, and we had nobody in the house to send for a supply of the

deficient materials, I resolved to write the list with my ink prepared

with wax, soap, and lamp-black, on the stone which I had just polished,

and from which I could copy it at leisure."

"Some time after this, I was going to wipe this writing from the stone,

when the idea, all at once, struck me to try what would be the effect of

such a writing with my prepared ink if I were to bite it in the stone

with aquafortis; and whether, perhaps, it might not be possible to apply

printing ink to it in the same way as to wood engravings, and to take

impressions from it." Sennefelder surrounded the stone with a border of

wax, and applied aquafortis, by which in a few minutes the writing was

raised. Printing ink was then applied with a common printer's ball,

impressions were taken off, and the practicability of the important art

of lithography thus was fully established.

The first application of the art to purposes of usefulness unconnected

with the fine arts, was made by the Duke of Wellington in the Peninsular

War, for the purpose of rapidly multiplying copies of general orders,

instructions, etc., and accompanying them with sketches of positions. It

has since been introduced into the public offices of almost every state

in Europe; and its uses in every department of commercial, social, and

artistic activity are innumerable.

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