After this, Printing was practised very generally, not only in London,
but in many other places, especially Oxford and Cambridge, both which
Universities obtained the exclusive right, which they still retain, of
Printing all Bibles and Prayer Books; that is, with the exception of the
person holding the patent of King's Printer, who also has this right.

The principle of moveable Types having been once introduced, little room
was left for improvement, beyond the slight variations in the form of
the Letters, which, as a matter of taste, would always be liable to
fluctuate: a comparison of works, printed at different periods, will
exemplify this.

An experiment was made some years since, in Logographic, or Word
Printing; the Words of most frequent occurrence being cast together,
instead of setting them up in single Letters; but it does not appear to
have succeeded, or to have been generally adopted, though a Volume, at
least, was printed on this plan, which the Publishers of this little
work happen to have in their possession.

In the improvement of the Printing Press, and the manufacture of
Printing Ink, a larger sphere was opened, inasmuch as to the advancement
of these, Printing must be ever indebted for its degrees of excellence.

Printing Ink is a sort of Black Varnish, the making of which is still a
secret in the hands of the manufacturers, so far as its finer qualities
are concerned.

Its requisites are, that it should have a sufficient, and not too great
a degree of tenacity; that it should produce a perfectly black
impression, and that it should dry quickly: in proportion as the Ink is
deficient in these qualities, it will be liable to injure the paper, or
produce specks, to surround the printing with a yellow hue, from the too
great preponderance of the oily ingredients; or to soil the paper during
the subsequent processes. The excellence of the Printing of Baskerville
was chiefly attributable to his discoveries in the art of Ink Making.
The late Mr. Bulmer, also, who printed some of the most splendid works
of the last half century, was very successful in his experiments. The
manufacture is now in the hands of several persons, who are eminent in
this art, and who have made it a distinct branch of business.

STEREOTYPE PRINTING,

which is a modern improvement, is a mode of rendering a work permanent
in Type, in the following manner. When the Type has been accurately
corrected, the Pages of Type are proper