COR. 
blovf pipe, it first liquifies, tl'.en becomes 
pulverulent, and lastly is sublimed, exhaling 
an odour of sebacio acid. It becomes 
blown from exposure to light. At the tem- 
perature of 60", an ounce of water dissolves 
10 grains of the concrete acid, but if it is 
very pure, not more than 4 grains. Boiling 
water dissolves half its weight. It is not al- 
tered by oxygen gas. The mineral, or the 
other vegetable acids, have little action on 
it, and do not completely dissolve it, espe- 
cially when it is not quite pure. Alcohol 
developes in it an aromatic odour. 
Suberic acid unites easily with the alka- 
lies and earths. Its salts are named sube- 
rates. The mineral acids in general preci- 
pitate the suberic acid from their solutions ; 
and they are decomposed by solutions of 
almost all the metallic salts. Suberic acid 
has no action on platina, gold, or nickel ; 
but it forms salts with the greater number 
of the otlier metals. In general these 
salts do not crystallize, and they have a 
tendency to form with an excess of acid. 
Its action on some metallic solutions give 
some appearances which may serve to dis- 
tinguish it. It decomposes acetite and ni- 
trate of lead, and nitrates of mercury and 
silver : with nitrate of copper it forms no 
precipitate, but the blue colour of the solu- 
tion passes to green, as does also that of 
sulphate of copper : the solution of sul- 
phate of iron becomes of a deep yellow, 
and that' of sulphate of zinc of a clear golden 
yellow. A char acter peculiar- to it is, that 
when a few drops of it are added to a solu- 
tion of indigo in sulphuric acid, it causes the 
blue colour to pass to a green. 
Tire characters by which it is distin- 
guished from the known vegetable acids, 
are 1. from the citric, by not crystallizing ; 
2. from the gallic, by not precipitating iron 
black ; 3. from the nrallic, by being ob- 
tained in a concrete form ; 4. from the 
tartaric, by its volatility ; 5. from the oxalic, 
by not precipitating the solution of sul- 
phate of copper, and by yielding to it lime. 
From these, and the various phenomena 
presented in its combinations, it is consi- 
dered as different from all the other acids. 
CORN, in country affairs, the grain or 
seeds of plants, sepai ated from the ear, and 
nsed for making bread. See Agricul- 
ture. 
Corn trade. It is evidently desirable 
in every nation, that there should be plenty 
of the principal articles of food ; and like- 
wise that the money price of it should be as 
low as possible. The policy of every coun- 
COR 
try, with regard to corn, sliould be directed 
to these two capital objects. 
It is found by universal experience, that 
there is no method of favonring tlie produc- 
tion of any article so safe and advantageous 
as the securing of a good price to the pro- 
ducer ; and this end is answered in England 
by permitting the exportation ot corn when 
it is cheap ; and enabling the producer, by 
means of a bounty that usually is at least 
equal to the expense of carriage, to sell his 
corn in other countries as cheaply as the 
farmers of those countries. With this view 
the bounty on the exportation of corn was 
originally granted, and this end it is sup- 
posed to have answered. 
Tlie general objection to all bounties has 
already been stated. See Bounty. Witli 
regard to the bounty on the exportation of 
corn it may be observed, that in conse- 
quence of it, the money price of corn has 
probably been higher, than, cat. par., it 
otherwise w ould have been : but the money 
price of corn regulates the money price of 
labour, and, consequently, the money price 
of all the productions of labour must be en- 
hanced, by whatever enhances the money 
price of corn. The bounty, therefore, has 
probably rendered the money price of all 
articles of British industry rather higher 
than it otheiwise would have been. Now 
this bad effect could not arise from a bounty 
on production, to he paid to the grower 
whenever the market price was below a 
Certain sum ; or to be paid regularly for 
every bushel of wheat grown. If a bounty, 
therefore, be necessary, it seems more de- 
sirable that it should be given for produc- 
tion than for exportation. 
Blit as the quantity of corn produced de- 
pends not merely on the diligence and skill 
of the farmer, but on the nature of the 
seasons; some degree of uncertainty W'ill 
necessarily exist with regard to the supply 
for any particular year. The proportion 
between the supply and the demand will 
vary, and the price consequently will fluc- 
tuate. Popular prejudice always ascribes 
scarcities to the farmer, the miller, or the 
corn-dealer ; but an enlightened policy must 
regard all of tliese whose capitals enable 
them to keep a large stock, and especially 
the last, as most beneficially employed. It 
is their interest to watch the market ; to 
ascertain the quantity produced, and to suit' 
the supply to the demand. They purchase 
when they find tlie market overstocked ; 
they sell when it is undei-stocked ; they 
keep a (juantity in reserve when a scarcity 
