750 LAWS OF MARYLAND. [CH. 597

vehicles owned by farmers on certain parts of the State's
highways,

SECTION 1. Be it enacted by the General Assembly of Mary-
land, That Section 154 of Article 56 of the Annotated Code of
Maryland (1939 Edition), title "Licenses", sub-title "Registra-
tion of Motor Vehicles and Operators", be and it is hereby
repealed and re-enacted, with amendments, to read as follows:

154. Every owner of one or more motor vehicles before
the same shall be operated in this State, and except as herein-
after otherwise provided, shall fill in and file with the Com-
missioner of Motor Vehicles, on a blank furnished by the Com-
missioner, an application for the registration of such motor
vehicles, containing such information as shall be required by
the Commissioner.

Motor vehicles owned by farmers and registered under the
provisions of this Article may, on the payment of one dollar
($1. 00), be. operated on that part of the State's highways
which is adjacent to their farms.

The horsepower of all motor vehicles propelled by gas
engines, except motorcycles, shall be computed and recorded
upon the following formula, and the annual registration fee,
hereinafter provided for, paid in accordance herewith: Square
the diameter of the cylinder, multiply by the number of
cylinders and divide by two and one-half.

For all motor vehicles propelled by steam engines, other
than tractors and traction engines, the rating shall be based
on the system of rating adopted by the United States Govern
ment.

Should any other motor power be used, and in case of motor
vehicles having solid tires, the Commissioner of Motor Ve-
hicles is empowered to adopt such formula to govern their
rating as he may deem proper.

The said Commissioner of Motor Vehicles upon the payment
of the registration fee hereinafter provided for, shall file such
application in his office and register such motor vehicles,
assigning to it a distinguishing number or mark, and shall
thereupon issue to the owner thereof a certificate of registra-
tion which shall contain the name, place of residence and post
office address of the owner, and the number or mark assigned
to such motor vehicle.

Such certificate shall be in convenient form, and shall at
all times be carried upon such motor vehicle, and shall be
subject to examination upon demand by any proper officer as
hereinafter provided.

Said Commissioner, shall also, without expense to the appli-
cant, issue and deliver to such owner two duplicate metal
plates or markers bearing the letters "Md. " or word "Mary-