A NEW METHOD OF PRESERVING ANIMAL AND VEGETABLE SUBSTANCE
Year: 1793

page_text: TO ALL TO WHOM THESE PRESENTS SHALL COME, I, JOHN
DONALDSON, of Tavistock Row, Covent Garden, in the County of Middlesex,
Gentleman, send greeting.
WHEREAS His present Majesty King George the Third, by His Letters
Patent under the Great Seal of Great Britain, bearing date at Westminster,
the Nineteenth day of February, in the thirty-third year of Our reign, reciting
that I, the said John Donaldson, had, by my petition, humbly represented unto
His said Majesty that I had, by great study, invented "A NEW METHOD OF
PRESERVING ANIMAL AND VEGETABLE SUBSTANCE," which would be of public utility
and advantage, and praying His Majesty to grant to me, my executors, admors,
and assigns, His Letters Patent for the sole exercise of my said Invention
within England, Wales, and the Town of Berwick-upon-Tweed, for the term
of fourteen years from the date of the said Letters Patent, was graciously
pleased to condescend to my request; in which said Letters Patent is con-
tained a proviso that if I, the said John Donaldson, should not particularly
describe and ascertain the nature of my said Invention, and in what manner
the same is to be performed, by an instrument in writing under my hand and
seal, and cause the same to be inrolled in His Majesty's High Court of
Chancery within one calendar month next and immediately after the date
of the said Letters Patent, that then the said Letters Patent, and all liberties
and advantages whatsoever thereby granted, should utterly cease, determine,
and become void, as in and by the said Letters Patent, relation being
thereunto had, may and will more fully appear.

page_text: NOW KNOW YE, that I, the said John Donaldson, in compliance with
the said proviso, do hereby describe and ascertain the nature of my said Inven-
tion to be, as is herein-before set forth, a New Method of preserving Animal
and Vegetable Substances; and that, farther, I declare the operation to be per-
formed by an exact combination of certain principles, most wholesome and
nutritive, and which indeed are contained in vegetable bodies themselves; that
is to say, not by means of any one principle, but by proportioning the farina-
ceous vegetable principle with the coagulative or mucilaginous one, and
supplying such combination by admixture according as the quality of the sub-
stance or substances to be preserved may require. To be yet more particular,
in order to preserve any vegetable which is in itself of a water yor deliquescent
nature, a greater portion of farina and mucilage is required than for others
that are more solid and readily disposed to dry. Let the substance to be pre-
served, for example, be carrot or turnip, the preserving matter may be com-
pounded of wheat or barley meal, with solution of any common gum or
vegetable mucilage. The substance may be either preserved in a raw state or
previously boiled or otherwise dressed, as their nature or occasion requires.
But as the matters that may be preserved in this way, including the preserving
ones, are inuberable and various, it is impossible that any uniform rule can be
given. Thus any simple farinaceous vegetable matter, combined with a
mucilaneous vegetable one, composes a preservative for other fresh vegetable
or animal bodies or parts contained in them, which are of a less fixed or
desecative nature. The substances, being thus accurately prepared, are
dryed in a way simular to that by which malsters dry their grain, that is,
by stoves properly heated or otherwise, as occasion may suggest. And,
lastly, they are carefully put up into wooden boxes or other close packages
for keeping and use.
In witness whereof, I have hereunto set my hand and seal, this
Fourteenth day of March, One thousand seven hundred and ninety-
three

page_text: AND BE IT REMEMBRED, that on the Fourteenth day of February, in
the year of our Lord 1793, the aforesaid John Donaldson came before our said
Lord the King in His Chancery, and acknowledged the Specification aforesaid,
and all and every thing therein contained and specified, in form above written.
And also the Specification aforesaid was stampt according to the tenor of the
Statutes made for that purpose.
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