Since comparison of fine cars is impossible without taking into consideration the factor of the first cost, we have to point out that the Isis is, technically, only equally by most cars that cost far more. Study the specifications note the lobg and low built chassis, the quiet power of the engine, the sleek finish and poise of the body, the mulyiitude of little "extras" included. And then when you may begin to think with regret that so luxurious a car must surely be expensive, you will be pleased to remember that the price is actually quite moderate.

The Isis is not a racing car, but it certainly is no sluggard, it combines high road speed and utmost comfort and style in the most practical and pleasing form. And in the 1934 Isis you will find an even more roomier saloon body, with central opening doors, disappearing arm rests and many other thoughtful refinements.

General
The Morris lsis Six consists of an overhead valve six cylinder water cooled engine with a totally enclosed clutch, synchromesh four-speed gearbox and free wheel built in unit construction. The power unit is supported in a deep sectioned frame with a generous stiffening member of " X " formation. long semi-elliptic springs, controlled by hydraulic shock absorbers, carry the front and rear axles. The track is 4 ft. 8 in. (1.422 m.) and the wheelbase 10 ft. 0 in. (3.048m.).

Engine
The six cylinder engine has a bare of 69 mm. (2.72 in.), a stroke of 1 10 mm. (4.33 in.), and a cubic capacity of 2468 c.c. (150.61 cu. in.), a Treasury rating of 17.7 h.p. and a tax of £18. The six cylinders are cast en bloc with the upper half of the crank- case, which extends welitbelow the crankshaft centre and is re- inforced by unusually generous cross members of box formation, producing a deep girder structure of particular strength. The crankshaft is carried on four bearings of the largest possible dimensions and is machined all over to ensure a high degree of balance. It is finally balanced to extremely close limits and is provided with a torsional vibration darnper. An overhead camshaft of large diameter operates inclined valves through light, but strong, rocker mechanism. The combustion chambers are machined all over to ensure uniformity of compression and the minimum of carbon deposit. The camshaft is driven by a duplex roller chain, automatically tensioned by a patented device which facilitates ddismantling. The camshaft chain drives two auxiliary shafts from which are driven the oil pump, distributor, dynamo, water impeller and fan. Special provision has been made in the detachable head to permit of its removal for decarbonising without disturbing the timing or necessitating removal of the chain or even its readjustment. The steel connecting rods of " I " section, machined all over, are individually and collectively balanced, while the big-end bearings are of the full ring type with white metal linings in heavy bronze shells. The pistons are of aluminium with three narrow rings. The reciprocating assemblies are balanced as units to within .2 oz. (best aero engine practice).

Synchromesh Gearbox and Free Wheel
The four-speed gearbox is provided with synchromesh mechanism with interceptor for the engagement of top and third gears, which are of the constant mesh silent type. Gear selection is by centrally disposed lever. Gear changing is rendered completelysimple by the addition of a free wheel device which can be locked when desired.

The Automatic Clutch Control
Bendix automatic clutch control is provided. The car can be driven entirely by simple actuation of the accelerator pedal and gear lever without manual clutch operation. The automatic clutch control is brought into operation by a conveniently placed control.

Lubrication
Full forced feed lubrication is provided by a pump of the spur gear type, mounted externally and carried well below the oil level so that it is self-priming. Oil is fed under full pressure to all important bearings, and oil cleanliness is assured by a tray pattern filter of exceptional dimensions.

Cooling System
A water pump driven from the dynamo shaft circulates the cooling water. The cooling water is maintained at its most effective temperature by automatically-operated radiator shutters, while radiation under extreme conditions is assisted by an efficient fan.

Carburation
The working mixture is supplied by an S.U. carburetter feeding into an induction pipe cast integral with the cylinder head. The carburetter is fitted with adequate control over the mixture strength. An air-preheating and cleaning cover is fitted to the head, which consumes all crankcase fumes and prevents them from entering the body of the car.

Electrical Equipment
Ignition is by battery and coil with the automatically controlled distributor mounted vertically at cylinder head level. The dynamo is carried well up on the side of the engine, where it is readily accessible. The starter motor is of the sliding pinion type and provided with Startix automatic switch. Lucas Biflex headlamps with dipping reflectors, sidefamps, and stop and reverse lamp are standard equipment, while all lighting and dynamo switches, together with the ignition, slow running adjustment for the throttle, and dipping headiarnp mechanism, are mounted in the centre of the steering wheel. Included is an electric windscreen wiper with twin blades, concealed traffic indicators with automatic release switch, and master battery switch.

Transrnission
The clutch is of the single plate type with cork inserts running in oil. Its action is light, smooth and certain under all conditions, and its lubrication is automatic. A Spicer balanced tubular propeller shaft, with Spicer universal joints at either end, transmits the drive to the spiral bevel final drive gears, which are differential equipped. The axles are of the three-quarter floating type.

Four Wheel Brakes
Fully compensated four wheel brakes of the lockheed hydraulic pattern are fitted. Maximum braking efficiency is maintained at all times, there being no lost motion or loss of leverage. A powerful hand brake operating on the rear wheels is also fitted.

Steering
The steering gear is of the Bishop cam type, extremely light and certain in operation.

Petrol Tank
A petrol tank of 17 gallons (77 litres) capacity is carried at the rear, and is provided with an efficient pebble guard. Indication of its contents is given by an electric gauge with instru- ment panel dial. Petrol is fed to the carburetter by an S.U. auto- matic electric petrol pump.

Tool Kit
A kit of tools is provided with every car, housed in an accessible toolbox.