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strong machine with no particular features of construction and the type is very closely analagous in seating arrangement and general layout to our DH-4B.

The Potez Company is now experimenting and building up this machine of duralumin shapes. The fuselage longerons are being made of duralumin angles with gusset plate strut longeron joints, braced transversely by means of duralumin gussets only, and fore and aft with wires.

Their new duralumin wing construction is quite simple. It is a new interpretation of metal construction being entirely built up of duralumin channels, angles and gusset plates throughout. It is very easy to manufacture. It will be interesting to watch the development of this machine in metal.

Another interesting ship is the three motored Colonial type, designed to carry ten or twelve passengers. This machine has folding back wings. This machine has a total wing area of 94 sq. m. and a weight of 3,500 kgs. The wings, longerons, ribs, etc., are entirely of duralumin. The longerons in this job are of a "T" profile section, made from two pieces riveted together. The wire gusset fittings entirely envelop the longeron and in this manner detract from the fatigue and strain that would be the case with wire attachment bolts directly piercing longerons. The ribs

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