A NEW ART OR METHOD OF PRODUCING OR MAKING MINERAL OR VEGETABLE ALKALI
Year: 1782

page_text: TO ALL TO WHOM THESE PRESENTS SHALL COME, I, JOHN COL-
LISON, of Battersea, in the County of Surry, Chymist, send greeting.
WHEREAS His most Excellent Majesty King George the Third did, by
His Letters Patent under the Great Seal of Great Britain, bearing date the
Fourth day of November, in the twenty-third year of His reign, give and
grant unto me, the said John Collison, His especial licence, full power, sole
privilege and authority, that I, the said John Collison, during the term of
years therein expressed, should and lawfully might make, use, exercise, and
vend, within England, Wales, and the Town of Berwick-upon-Tweed, my
Invention of "A NEW ART OR METHOD OF PRODUCING OR MAKING MINERAL OR
VEGETABLE ALKALI;" in which said Letters Patent there is contained a proviso
obliging me, the said John Collison, by an instrument in writing under my
hand and seal, to particularly describe and ascertain the nature of my said
Invention, and in what manner the same is to be performed, and cause the
same to be inrolled in His Majesty's High Court of Chancery within four
calendar months next, and immediately after the date of the said Letters
Patent, as in and by the said Letters Patent, relation being thereunto had, may
more fully and at large appear.
:
NOW KNOW YE, that in compliance with the said proviso, I, the said
John Collison, do hereby declare that the nature of my said Invention of A
New Art or Method of Producing or Making Mineral or Vegetable Alkali, and
the manner in which the same is to be performed, is described and ascertained
in the manner following, that is to say:-
As to, for, touching, and concerning mineral alkali :-I take Glauber's salt
or any substance or liquor containing Glauber's salt, or I take rock salt, sea

page_text: salt, or common salt, and any substance or liquor containing vitriolic acid, and
mix these so that the salt shall be nearly twice the weight of the concen-
trated vitriolic acid, which I heat together in an open fire, reverberatory
furnace, iron pot, or other utensil, together with from a quarter to half
its weight of some or one or more of the following substances, videlicet:
mortar, sopers' ashes, clay, gypsum, loam, calcareous or other earth, and the
same quantity, inore or less, according to their different qualities, of horns,
hoofs, hair, leather straps, pitch, tar, small vegetables, breese, charcoal, pit-coal,
or any other substances containing or supposed to contain an inflammable
principle or phlogiston, or some or one or more of them, which when properly
heated, melted, or fluxed, produce a mineral alkali.
pursue
the
And as to, for, touching, and concerning the vegetable alkali, I
same process as above, except that I take sal polychrest, vitriolated tartar, or
any substance or liquor containing vegetable alkali and vitriolic acid, instead of
the salts and mixtures above mentioned.
In witness whereof, I, the said John Collison, have hereunto set my
hand and seal, the First day of March, One thousand seven hundred
night three
atty stamp,
JA MAINSTONE, Essex Street.
WILL. ALCOCK, his Clk.
AND BE IT REMEMBERED, that on the First day of March, in the year
of our Lord 1788, the aforesaid John Collison 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 in the sixth year of the reign of the late King and Queen W™ and
Mary of England, and so forth, and in the seventeenth year of the reign of
His Majesty King George the Third.
Inrolled the First day of March, in the year of our Lord One thousand
1d and nicht three