IMPROVEMENTS IN THE MANUFACTURE OF MANURE
Year: 1875

page_text: LETTERS PATENT to John Berger Spence, of Mark Lane, in the City
of London, Merchant, for the Invention of "IMPROVEMENTS IN THE
MANUFACTURE OF MANURE."
Sealed the 19th April 1876, and dated the 19th October 1875.
PROVISIONAL SPECIFICATION left by the said John Berger Spence
at the Office of the Commissioners of Patents, with his Petition,
on the 19th October 1875.
I, JOHN BERGER SPENCE, of Mark Lanc, in the City of London,
Merchant, do hereby declare the nature of the said Invention for
"IMPROVEMENTS IN THE MANUFACTURE OF MANURE," to be as follows:-
This Invention consists in the mixture of phosphates of alumina and
iron, nitrate of soda, and peat.
The relative quantities of the above ingredients may be varied
according to the quality of the manure required. The quantities I
prefer are 50% of the above phosphates, 20% of nitrate of soda, and
30% of peat. This peat is to be dried and ground to a fine powder,

page_text: and then intimately mixed with the above ingredients; but in some
cases I prefer to volatalize the gaseous constituents in the peat for the
purpose of converting the nitrogen contained therein into ammonia,
which is passed through the phosphates of iron, and is converted
into phosphate of ammonia, the charcoal being mixed with the manure t
if considered desirable.
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said John Berger Spence in the Great Seal Patent
Office on the 19th April 1876.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, JOHN
BERGER SPENCE, of Mark Lane, in the City of London, Merchant, send
greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Nineteenth day of October, in the year
of our Lord One thousand eight hundred and seventy-five, in the thirty-
ninth ycar of Her reign, did, for Herself, Her heirs and successors,
give and grant unto me, the said John Berger Spence, Her special
license that I, the said John Berger Spence, my executors, admini-
strators, and assigns, or such others as I, the said John Berger Spence,
my executors, administrators, and assigns, should at any time agree
with, and no others, from time to time and at all times thereafter
during the term therein expressed, should and lawfully might make,
use, exercise, and vend, within the United Kingdom of Great Britain
and Ireland, the Channel Islands, and Isle of Man, an Invention for
"IMPROVEMENTS IN THE MANUFACTURE OF MANURE," upon the condition
(amongst others) that I, the said John Berger Spence, my executors
or administrators, by an instrument in writing under my, or their,
Or one of their hands and seals, should particularly describe and
ascertain the nature of the said Invention, and in what manner the
same was to be performed, and cause the same to be filed in the
Great Seal Patent Office within six calendar months next and imme-
diately after the date of the said Letters Patent.

page_text: and nitrate of soda with peat, substantially as herein set forth, for the
purpose of producing a manure rich in fertilizing properties.
In witness whereof, I, the said John Berger Spence, have here-
unto set my hand and seal, the Twelfth day of April, in the
year of our Lord One thousand eight hundred and seventy-
six.