All laws enacted by Congress are termed " United
States Statutes at Large." In 1873 all laws of a perma-
nent nature then in force were gathered together in
a single volume reenacted by Congress, and in this
form are known as the " Revised Statutes." Since then,
various supplements have been published by which the
Revised Statutes are made to include all laws in force
nearly to date.
All laws for raising revenue must, according to the



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Constitution, originate in the House of Representatives,
but the Senate may propose or concur with amend-
ments, as on other bills. Though it is not constitution-
ally necessary for all bills appropriating money to origi-
nate in the House, it is customary for them to do so.
The salaries of Congressmen are fixed by Congress
itself, and have varied from time to time. At present
they receive $5000 per annum and 20 cents per mile
(termed mileage) of necessary travel to Washington
and return to their respective homes. The Speaker of
the House receives $8000.
During their attendance at Congress, or while going
from or returning to the same. Senators and Represent-
atives are exempt from arrest except when accused of
treason, or felony, or a breach of the peace. This
exemption is based upon the principle that, save in
serious cases, the people are not to be deprived of the
benefit of the services of the Representatives whom
they have elected. In order to secure greater freedom
of debate and expression of personal opinion, the Con-
stitution also provides that no member shall be held
responsible, that is, liable to prosecution for libel or
slander for anything which he may have said in any
speech or debate in his House.
