Pennsylvania, which having submitted the Woman Suffrage amendment in
1915 cannot do so again till 1920.[A]

[Footnote A: The five states are Illinois (four years), Pennsylvania,
New Jersey and Kentucky (five years), and Tennessee (six years).]

In no state is the Constitution so safeguarded from change as in New
Mexico, whose iron-bound rules are in a class by themselves. For the
first twenty-five years of statehood a three-fourths vote of both
houses of the Legislature ratified by three-fourths of the electors
voting, with two-thirds at least from each county, will be required to
change the suffrage clause. After twenty-five years the majority
will be reduced to two-thirds. This is the state whose Constitution
provides that illiteracy shall never be a bar to the suffrage; her
democracy falls short only in the matter of women whom she makes it
constitutionally impossible ever to add to her electorate.

Where constitutions can be revised by the convention method as well as
by amendment there is some hope; if amendment fails revision holds out
a chance. But twelve states[A] hold no constitutional conventions; in
Maryland conventions are twenty years apart and in many other states
it is as difficult to call a constitutional convention as to revise
the Constitution by amendment.

[Footnote A: Louisiana, Texas, Mississippi, North Dakota, Arkansas,
Connecticut, Indiana, Massachusetts, New Jersey, Pennsylvania, Rhode
Island and Virginia.]

New Hampshire amends by constitutional convention alone and these
conventions are held infrequently.