The St. Louis directory and register :
Article XII.
mode of amending the constitution.

The general assembly may at any time propose such amendments
to this constitution as two thirds of each house shall deem expedient,
which shall be published in all the newspapers published in this
state three several times, at least twelve months before the next ge-
neral election; and if at the first session of the general assembly
after such general election, two thirds of each house shall, by yeas
and nays, ratify such proposed amendments, they shall be valid to
all intents and purposes as parts of this constitution; provided that
such proposed amendments shall be read on three several days, in
each house, as well when the same are proposed, as when they are
finally ratified.