|
Glasgow
3d
May
1824
Dear
sir
I
was
favoured
with
your
letter
about
a
week
ago;
but
we
were
just
terminating
our
winter
session,
&
I
was
so
much
occupied
with
professional
business
that
I
was
obliged
to
defer
answering
it
till
now.
I
shall
answer
your
queries
as
well
as
I
can.
1.
the
degrees
on
my
saccharometer
moliscate
the
specific
gravity
of
the
wort
or
wash
at
the
temperature
of
60°
fahr
[Fahrenheit]
(15°
centigrade)
2
This
not
possible
to
give
a
precise
answer
to
your
second
question;
because
the
quantity
of
spirits
spielded
depends
upon
the
goodness
of
the
grain
employed
&
upon
the
mucss
of
the
fermentation;
both
of
hich
are
exceedingly
various.
100lbs
of
good
barley
when
malted
become
92lbs.
When
92lbs
of
good
malt
are
properly
treated
with
water,
about
46lbs
are
dissolved.
When
46lbs
were
moress
sally
fermented
they
ought
to
yield
18lbs
of
alcohol
of
Sf.
gr.
0.825
or
perhaps
a
little
more
_
the
loner
the
specific
gravity
of
the
wash
is
the
greater
is
the
product
gravity
of
the
wash
is
the
greater
is
the
product
|
Ecole
Polytechnique
