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-■— ' CHESTER. MOLD, DENBIGH.…

RHYL, ST. ASAPH, AND DENBIGH.

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%- IT r -fc ^"-n >.rr, SCIENCE…

WHY RUBBER TYRES GET HOT.

AN EYE EXHIBITION.

DENATURED ALCOHOL.

MICROPHONE FIREDAMP DETECTIVE.

WALL-PAPER AND TEMPERAMENT.

TO HELP THE VOICE.

CONCRETE AND STEEL.

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CONCRETE AND STEEL. The engineering experiment station in con- nection with the University of Illinois is con- stantly publishing the result of some useful work. Amongst other things it has presented to the world the result of a series of tests, which extended over a period of two years. Peculiarly enough, although reinforced con- crete is used greatly in building work, yet we, have very little data concerning its real pro- perties. We now know something of the- shearing strength of concrete, as well as the strength of the bond between the concrete and steel. With regard to the test on the concrete, it was decided to subject the mate- rial to a "punching test," which simply means that a hole was punched in a concrete plate or block. These punching tests were made on blocks 13in. square. The specimen was placed on a bed-plate lin. thick, with an opening 6in. in diameter in the centre. A spherical bearing block was used to apply the load, and a die, which was nino in diameter, was used as the punching tool. Ihe investigators say that it is difficult to devise a form of test specimen and a method of testing which will satisfactorily deter- mine the resistance of concrete to shear." The trouble is that it is very difficult indeed to secure an even distribution of the shear. Complications are formed by the compres- sive, tensile, and bursting stresses developed.

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HINTS FOR THE HOME.

I LABOUR - SAVERS.

SLEEPING ALONE.

HOME LIFE. i

'CARE OF BOOTS.

EATING THE 'CRUSTS.

TO BRIGHTEN COLOURS.

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|Cricket.

LLANYCHAN AND DISTRICT CRICKET…

VALE OF CLWYD CRICKET CLUB.

VALE OF CLWYD v. FIELDFARES.

COUNTY CRICKET.

- LLANYCHAN v. MOSTYN PARK.…

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Sanitation at St Asaph. ..