EMERSON C. HARRINGTON, GOVERNOR. 601

plans and specifications therefor shall be prepared by or
under the direction of said road superintendent when required
by the said County Commissioners, who shall recommend to
the board the manner in which the work shall be done, and if
by contract, bids for the work shall be invited by reasonable
publication; such bids when publicly opened and read shall
be referred to the said road superintendent for analysis and
report, and no adverse action on the recommendations of the
said road superintendent shall be taken except by majority
vote of the full Board of County Commissioners. All mate-
rials and supplies, machinery and equipment to be used on
the roads and bridges involving a cost of more than two hun-
dred and fifty dollars ($250.00), shall be contracted for after
requesting bids for the same by reasonable publication in the
county papers as the said Commissioners may designate. All
said material and supplies, machinery and equipment, shall
be subject to the approval of the county road superintendent
when said approval is requested by the County Commissioners.
Said County Commissioners shall purchase all stonecrushers,
rollers, scrapers and road material equipment and appliances
for use in connection with such roads, after referring the
same to the said road superintendent and receiving his recom-
mendation thereon. Said County Commissioners shall and
may adopt all necessary and reasonable rules, regulations and
orders with reference to the proper use, care, repair, improve-
ment, construction and maintenance of the County roads and
bridges, and shall have power to make all such rules and
regulations with reference to the use of the roads, streets,
avenues, lanes, alleys and bridges of the county by telephone
and telegraph companies, steam railroads and street railway
companies, gas, water and electric light companies, and similar
uses thereof as the County Commissioners may consider neces-
sary for the proper protection of said roads, streets, avenues,
lanes, alleys and bridges of the county, and the rights of the
public therein, and shall impose reasonable penalties for the
violation of all such rules and regulations, and make other
necessary provisions for the enforcement thereof, and shall
have the right from time to time to change or alter the same,
and all such rules and regulations when adopted and recorded
in a book or books kept for the purpose shall have the force
and effect of municipal ordinances regularly adopted by author-
ity of the General Assembly of the State of Maryland. The
constables of the county shall be' charged with the duty of