[ 56 ] ~ 
Mr, Henry Horn, 
Sir, -Killingworth, 0&. 4. 1*62, 
T Underftand by Mr. Collirtfon, that you have Teen, 
and greatly approve of, the fample of fand iron 
which was fent j that you >are defirous to know how 
it was made, and whether it can be made in large 
barrs. The little barr you faw, was cut off from a 
barr of 52 pounds and a half, the firft that was made 
•at my Ton’s work, the firfl; that was ever made in 
America, and probably the firft that was ever made in 
the world, in that manner, and fo large a barr. I ne- 
ver heard of any attempt made upon the iron fand, 
till that of yours 20 years ago, of which Mr. Collin- 
lon gave me an account in his letter. 
As to the manner of making the iron, it is wrought 
or fmelted in a common bloomary, in the fame man- 
ner as other iron ore is fmelted ; excepting this dif- 
ference, this iron fand is fo pure, fo clean walked, 
that there is not a fufficient quantity of cinder or flagg 
to promote and perform the fmelting, therefore wo 
add either the flagg which iflues from other iron, or 
elfe add fome bog mine ore, which abounds with cin- 
der ; in this way it is as capable of being wrought as 
rock ore or bog mine. 
T *was in hopes that if this iron fand could be 
wrought at » all, the particles being fo very fine, -it 
would fmelt very quick ; but herein I found myfelf 
miffaken, every particle has a will of its own, and 
muff have its own particular fmelting, for inftead 
©f its being performed in lefs time, it took more than 
common 
