Calendar: 1886-1887 Page 714

716 TENNANT PRIZE Sketch the usual scarf joint for timber describe its proportions and how it is usually arranged with regard to the supports Sketch the frame of an ordinary house-door showing the lines of construction and the provision made for securing it to the brickwork Describe the methods of drawing two different forms of epicycloidal wheel teeth and the special properties of each Sketch pattern for small steam-engine cylinder show- ing its construction the provision for getting it out of the sand and for securing the cores in position lEtnmnt fox £colog1 How would you determine the specific gravity of mineral soluble in water of one reduced to fine powder Take the specific gravity of the specimen given for examination and show the process by which you arrive at the result State the hardness of the two examples marked and Test by the blowpipe the chemical composition of the substances indicated by the letters and Write short account of the ores of copper and iron If small beads of lead antimony and bismuth be struck by hammer what appearances will be presented