PRACTICAL EXAMINATION.-SECOND DAY.

The Board of Examiners.

1. Determine the earth's magnetic intensity.

2. Measure by the magnetometric method the energy dissipated in the given cycle of magnetisations.

3. Prove that the magnetic force due to a circular coil at a point on its axis is proportional to (2+2 + 202) ̃3.

4. Calibrate the given ballistic galvanometer by means of an earth coil and rheostat.

5. Determine the specific resistance of carbon as a function of the temperature.

6. Find in absolute measure the e.m.f. of Clark's cell.

7. Determine the mutual inductance of the given pair of coils.

8. Express in a curve the relation between the energy expended by a separately excited dynamo and the resistance of the main circuit.

SCHOOL OF NATURAL SCIENCE.

PHYSICAL GEOLOGY AND MINERALOGY.

Professor Sir Frederick McCoy.

1. Write a short treatise stating in the fullest accurate detail you can all the physical movements of the crust of the Earth which have changed the original horizontal position of all Stratified Rocks, causing elevations at various angles, convolutions of rocks, faults, unconformities of strata, and the various characteristics of Earthquakes; and discussing the supposed causes of such movements.

2. Write a short treatise, as comprehensive as you can, on the methods of making geological observations in the field for the construction of geological maps, and of geological sections from the maps, with full discussion of the difficulties of representing nature without distortion on extensive sections, and the various modes of getting over such difficulties as arise from changes of scale, and variation of the direction of the line of section from the compass-bearing of the greatest dip of the strata.

3. Give the chemical and crystallographic characters of as many as you can of the more common rock-forming Minerals.

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4. Describe as many as you can of the primary and the secondary forms of crystals, using the notation of Miller, of Weiss, and of Naumann, for each face of each of the forms referred to. And give, in the monometric system, examples of the fixed characteristic angles at which the faces of each of the primaries are inclined, and the angles which normals to the faces of the different primaries make to each other when combined in one crystal.

5. Quartz, Felspars, Augites, Hornblendes, and the Micas are the most important mineral constituents of Igneous Rocks, and the Silica is the most important acid in them. Show how the Ortho-silicates, Meta-silicates, and the condensed Silicates of each of these groups, and the Anhydro-silicates account for the observed relations of the minerals occurring in most Igneous Rocks, and for the occurrence of free quartz with some minerals and not with others in Igneous rock masses.

STRATIGRAPHICAL GEOLOGY AND

PALEONTOLOGY.

Professor Sir Frederick Mc Coy.

1. Write down as full a list as you can of all the various named divisions and formations of Strati

fied Rocks in the chronological order of their successive formation.

2. Write a short treatise on what Barrande called "Colonies" in the rock-formation of the Silurian Basin of Bohemia. Point out any logical fallacies in the theory as originally set out, and deal with the chief statements of facts, inferences, and explanations of difficulties offered by other authors. Apply the Theory to other formations, and use the results in forming the opinion which you favour as most in harmony with all the known facts.

3. Give the generic characters and geological range in time of the following_genera of Palæozoic Fossils, viz.:-Olenus, Fenestella, Producta, Aviculopecten, Favosites, Diplocanthus, Diplograpsus, Lepidodendron, Griffithides, Clymene.

4. Give the generic characters and range in time of the following genera of Mesozoic and Tertiary periods, viz.: Pterodactylus, Machairodus, Plesiosaurus, Rhinocerus, Phascolotherium, Ursus, Trionyx, Teleosaurus, Zeuglodon.

5. Give the generic characters of the more characteristic fossils of the following formations, viz. :-Lias, London Clay, Bala Series, Orkney Flags, Upper Old Red Conglomerate, Mayhill Sandstone, Braunkohle, Oolitic Coal, Paleozoic Coal formations.

FINAL HONOUR EXAMINATION IN SCIENCE.

SCHOOL OF CHEMISTRY.

CHEMISTRY.

The Board of Examiners.

Read the papers marked in the volumes submitted herewith.

Write an abstract of each paper, setting forth clearly the nature of the enquiry, its methods, and its results.

Write also, as an appendix to this abstract, such criticism or discussion of the paper as you may think appropriate, having special regard to its bearing on other researches and on general chemical theory.