7. State what you know about "Indicators," illustrated by sketch diagrams.

8. How would you ventilate the bottom levels in a mine possessing only one shaft? Mention two or three methods, and describe the one which you consider the most economical. If the mine possessed two shafts, what circumstances would determine which would be the up-cast?

9. Describe safety-fuse, and state its special qualities and uses.

10. State what important points are likely to arise in connection with the selection of the best site for a new main shaft on a quartz reef or lode.

11. Suppose a battery for treating quartz containing free gold and auriferous pyrites is provided with blankets, copper plates, tyes (strakes), and shaking tables, as well as the ordinary stamperboxes, give the order in which these should be placed, and describe the nature of the stuff saved by each appliance, and the further process which this stuff would have to undergo before gold is obtained ready for smelting.

NOTE.-Illustrative sketches will enhance the value of replies to questions and explanations.

METALLURGY.

The Board of Examiners in Chemistry.

1. Describe the different kinds of fracture in metals, and give an example of each kind.

2. Give the chief physical and chemical properties ot the following metals, and also of their chiet chemical compounds, more particularly those dealt with in metallurgical operations:-Lead, silver, copper.

3. What metals are contained in the following minerals-Cryolite, stibnite, cinnabar, bauxite, cassiterite, polybasite.

4. Describe the Cassell process for extracting gold from auriferous pyrites.

5. Describe the Castner process for the production of aluminium.

6. How is crucible steel made, and to what

purpose is

it applied?

7. Describe the Bessemer converter.

by basic lining and acid lining?

What is meant

8. Describe the processes known as cupellation and scorification. What is the essential difference between them?

ARCHITECTURE.-PRACTICAL.

FIRST PAPER.

The Board of Examiners.

1. In the accompanying plan and section of a building calculate the weights on the columns B and the wall C, and figure the sizes you would adopt for the foundations, the bottom being a soft clay and the footings cement concrete. Give all calculations.

N.B.-The weight of materials and loads to be taken as given in margin of section. Window openings not to be deducted. Weights of columns and beams, &c., are included in the loading.

2. Write the specification for the excavation, footings, and the foundations, &c., up to the ground-floor line of the columns B and wall C respectively, assuming Melbourne materials.

3. Assuming A to be a hollow wall with solid piers to carry the girders, describe the materials you would use and the method of building walls and piers respectively.

4. Assuming the wall of the building adjoining C to have its foundations at the level shown, state in due order what operations will be necessary to secure its safety, and give sketches.

5. Explain the meaning of the following terms in Melbourne, and give rough sketches:-Rubble masonry-cube rough-axed ashlar-fine patent picked-tooled margins.

6. What are the requirements of a perfect drainage scheme? The plan marked VI. shows the various sanitary fittings of a villa, also the sewer in front street, and the point of connection is marked. Sketch on plan the various wastes, drains, &c., to fulfil these requirements.

7. State the precautions necessary in building external walls and internal partitions in wooden buildings that are to be lath and plastered inside. Give sketches.

8. What are the objections to lead in roof-plumbing work? In what parts of a roof is its use advisable and necessary? What would you use in other parts, and what general principle must be observed in roof-plumbing work?

9. What considerations would guide you in determining the factor of safety in architectural buildings? Illustrate your answer by reference to columns. State the relative merits of steel and iron in architectural construction.

10. In designing a brick building for the hot climates of Victoria, what provisions would you make in the structure to minimize the effects of the climate without involving too great expense

ARCHITECTURE.-PLANNING.

SECOND PAper.

The Board of Examiners.

1. In the accompanying Ground Plan I. a drawingroom, dining-room, and breakfast-room (to be used also as a school-room) are shown; also the points of the compass for aspect, the prospect being equally good all round. The position of the store and pantry and the kitchen offices are also indicated.

You are required to name on the plan the rooms you would select for the above purposes, and to sketch in the arrangements for kitchen, scullery, and larder; also to sketch in their proper positions all windows, doors, and fireplaces, figuring the widths, and showing the position of sideboard in dining-room, and grand piano in drawing-room.

2. On the above plan sketch to scale the stairs you

would adopt, assuming the height from floor to floor to be 14 feet, and the stairs to land clear of the door marked A on the first floor.

of treads, risers, and width of stairs.

Give sizes

3. What is a dog-leg staircase? Under what circumstances are they useful? What are the disadvantages of them? What are the advantages of newel staircases? Give maximum and minimum sizes of treads and risers you would use for the servants' stairs and the main stairs of a £2,000 house.