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ARIZONA HIGHWAYS Stetson Hats Arrow Shirts Vassar Underwear Crossett Shoes Johnston & Murphy Shoes Luxite Hose, Men's and Women's Hart Schaffner & Marx Clothes Vic Hanny Co. MARMON and ROOSEVELT STRAIGHT EIGHTS

A Car for all. Now Showing at State Marmon and Roosevelt Distributors

W. W. Franklin Motor Co. GRADER BLADES OF SUPERIOR QUALITY For All Makes Graders or Drags

We also manufacture Grader Moldboard, Steel Frames, Grader Structurals, Scarifier Teeth, etc., to specifica-tions.

Large Stock of Miscellaneous Makes of Blades on Hand in Phoenix Warehouse, Thus assuring Prompt Shipments

We Solicit Your Inquiries

COMMERCIAL & ARIZONA HOTELS, INC. Valdura Asphalt Paint BLACK, GRAY, GREEN

America's foremost real asphalt paint. An absolute water-proofing, and paint which will resist acid, alkali and weather attacks better than any other paint known. It is the last word in preservative paint. VALDURA is made from genuine 99.5% pure Gilsonite natural asphalt, linseed varnish, drier and thinning oil. It is absolutely free from coal tar and contains no oil asphalt.

VALDURA can be used on almost any surface; for the painting of roofs, structural iron, machinery, smokestacks, farm implements, fencing, water towers, ships, barns, silos, granaries, reservoirs, bridges, wagons, elevators, water troughs etc.

Palace Hardware and Arms Co. HULSE & DICK Ford Products

It's our pleasure to please our customers

ENGINEERS AND CONTRACTORS

Will Find Value in

ARIZONA HIGHWAYS Stop! Look! Listen! EXPLOSIVES

Standard Dynamite, Gelatin Dynamite, Quarry Powder, R. R. Grading Powder, Stumping Powder, Coal Powder, Timberite, Blasting Caps, Fuse, Electric Detonators.

Write for quotations on Car Lots or Ton Lots f.o.b. your railroad station.

Apache Powder Company

Sales Department, Drawer 218, Benson, Arizona FOR speed with safety, and utmost comfort, nothing equals a concrete road. Its invitingly smooth surface frees the driver from the necessity of watching the pavement he can devote his attention to traffic and enjoy the scenery. Even in wet weather tires hold securely on concrete.

Each year, concrete brings within easy, care-free driving distance an ever-widening panorama. New broad highways are built-and contemplated. For future motoring ease and safety, endorse concrete.

PORTLAND CEMENT ASSOCIATION Union Bank Bldg., Los Angeles

Concrete for Permanence THE O. S. STAPLEY COMPANY

Gilbert Road Machinery

McCormick-Deering Industrial Units

Highway Guard Fence

Hardware

WHOLESALE DEPARTMENT

GALION NEW E-Z LIFT SKEW AXLE LEANING WHEEL GRADERS

ARE the results of years of experience in grader design and construction. Adjustable Leaning Wheels combined with the patented Galion Automatic Skew Axle produce not only the most efficient but the sturdiest and easiest operating grader ever developed. Galion Leaning Wheel Graders are more than Graders—they are highclass grading machines, designed by Engineers who have had years of experience in building and maintaining roads, as well as designing and building road machinery.

Compared size for size with Leaning Wheel Graders of any other make, Galion Leaning Wheel Graders are built stronger, heavier and of better material throughout than any other Grader on the market. They will do your job better, easier and cheaper.

Galion Leaning Wheel Graders are furnished in 9 sizes with mold-boards ranging in length from 7 to 14 the feet.

A FEW SUPERIOR GALION FEATURES

THE F. RONSTADT CO., TUCSON

ARIZONA HIGHWAYS PHOENIX-ARIZONA PHOTO ENGRAVING COMPANY

Designers and Makers of Illustrative Printing Plates 335-337 N. FIRST AVE..

Phoenix. Arizona

Ben D. Cooley

Commercial Photographer

Phone 23342

122½ N. 1st Ave. Phoenix, Ariz.

REFINING MARKETING PRODUCING

A complete unit of the petroleum industry-ProducersRefiners-Marketers.

RIO GRANDE PETROLEUM PRODUCTS

Rio Grande Petroleum Products are available throughout the Southwest.

RIO GRANDE OIL COMPANY

Refineries: Vinvale, California Phoenix Arizona El Paso, Texas

425 West Adams Phoenix, Arizona Phone 23271

L. D. HEMMAN MOTORS

STATE DISTRIBUTORS

G. M. C. TRUCKS

OUR CONSULTANT ENGINEER AT YOUR SERVICE

Trucks ½ to 15 Ton

HEINZE, BOWEN AND HARRINGTON, Inc.

I. P. Loose Leaf Products, Blanks, Books, Office Furniture

EVERYTHING FOR THE OFFICE

228 W. Washington St., Phoenix, Arizona Phone 3590

Filing Equipment and Supplies Office Furniture

KEYSTONE CULVERTS

MEET THE REQUIREMENTS OF U. S. BUREAU OF PUBLIC ROADS U. S. RECLAMATION BUREAU

U. S. INDIAN SERVICE U. S. FOREST SERVICE

COLORADO CULVERT & FLUME CO. PUEBLO COLO. REINFORCING STEEL

Contractors Equipment and Supplies Heavy Hardware

ROAD GUARD FENCE

Phone 7487

Pratt Gilbert Hardware Co.

Phoenix, Arizona

THE MANUFACTURING STATIONERS INC.

"ARIZONA'S GREATEST COMMERCIAL PRINTING PLANT"

THREE SEVENTEEN WEST ADAMS STREET

PHOENIX, ARIZONA

his is what you can demand of any pavement

Smooth-riding qualities.. and safety.. Those you'll take for granted.. the minute you hit an asphaltic concrete pavement. As you purr along over country boulevard, or idle along city street rain or shine, in any kind of weather, you just know you're safe on modern non-skid asphaltic concrete. But there's something else.. that you can't see, or feel. That's cost. And that's where asphaltic concrete pavements have gained their great popularity. They usually cost less to construct than any other hard-surface pavements and considerably less to maintain. Scores of asphaltic concrete pavements in the Pacific West States have given from 15 to 20 years of service with little or no upkeep cost whatever. Before you pave.. investigate asphaltic concrete.

STANDARD OIL COMPANY OF CALIFORNIA Huntington Drive, Los Angeles County, California. Paved in 1927.. with 6/2-inch non-skid asphaltic concrete.

Asphaltic CONCRETE NON-SKID pavements

No Delays in Grading Armco Corrugated Culverts

Effect great savings in construction, casts. Where they are used, the drainage ways can all be disposed of IN ADVANCE of the main grading operations, thus multiplying the efficiency of all grading and hauling equipment. Once in place, these sturdy pipes may be covered and forgotten.

They are the choice of practical men everywhere

California Corrugated Culvert Co. Western Metal Mfg. Co.

Los Angeles 409 Leroy St.

West Berkeley 417 Parker St.

Houston, P. O. Box 1353 Dallas, San Antonio, P. O. Box 520 Carolina St. 818

El Paso, Texas P. O. Box 598

Care Vic Householder, Dist. Sales Mgr. 1330 E. Brill St., Phoenix, Arizona

What about the Super Sixes ... the HUDSON .. the ESSEX ... how does hard carbon affect their fine motors?

HIGHER COMPRESSION! A simple development, but a far-reaching change. The newer cars with more economy, longer life, lower first cost, give us speed and power unheard of a few years back.

Take the new Essex “Chal-lenger,” offering “sixty all day long”—an impossible pace before high-compression motors came.

But the newer cars brought out a fault—not in themselves but in the lubricating oils they use.

Many motor oils form hard carbon-coke-like deposits that build up in layers inside your motor. Their refiners have always known this, but once it could be ignored —with big, roomy old-style motors. Not so today; there is scarcely the thickness of a dime between the piston and cylinder head.

Hard carbon there causes knock-ing, engine strain, power loss. Flakes chip off, grind through tight pistons and bearings, caus-ing needless wear.

But in one oil, at least, science has overcome the carbon menace. This new oil forms only 1/3 to 1/5 as much carbon as even the cost-liest oils you can buy! The little it does form is soft, soot-like - a kind that blows harmlessly away.

It is Shell Motor Oil. Refined by a new high-vacuum process, it withstands violent temperature changes; keeps its body long after ordinary oils disintegrate.

Discerning motorists acclaim Shell Motor Oil as the answer to modern lubrication problems.