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[Page 15]
[in left hand margin] Charge of Rolling
The Charge of Rolling Copper differs
much near London where Coals are
dear it Costs Per Ton -------------------------------- £16 ---
in Coal Countries it may be done for ---------- 10.13. 4
hard Rolling Cost ½ a pound
Sheathing Plates weigh from 10 to
32 ounces per foot square
[in left hand margin] Value of foreign Copper
Swedish Copper is in value when
Compard with English about as 19½/20
Russian Copper much the same
Spanish Copper from 18½/20 to 19/20
Copper is often mixed with other metals
which make it brittle Iron makes it
of the worst Quality & anglesee
Copper is supposd to Contain more
of this metal than any other it is
is particularly detrimental to Sheathing
Plates making them waste much faster
on the Ships bottom than pure Copper
does
[in left hand margin] Persian Copper
Resident at Buperah
The Copper is Carried by Land to Mosul
150 miles the navigation of the Tigris being
dangerous on account of Pyrates [Pirates]
the Expence of Carriage a from
Mosul to Buperah is about 50 per % the
duties about 20 per % together 70 per %
The mines of Gold & Silver are
worked on Government account those of
Tin & Copper are farmed by Greeks like
Employ Musselmen Laborers
The Quantity produced on an
average 8 years 250,000 mounds of 30
Each Tons 3348 about The mines are so
Extensive that their future produce is
incalculable
in 1791 16,000 [altens?] mounds
were exported from Buperah in 1796
70,000 Equal to 1000 Tons the Price risen
from 80 to 130 mem monies per mound 8 to 13 Bombay Rupees
a Bombay Rpee at 2/ say /10/ a Pound
or £93.6.0 a Ton Risen to from £56