NATURAL SCIENCES, MINERALOGY, AND

GEOLOGY.

WARINGTON SMYTH, M.A., F.R.S.

1. By what means is the comparative hardness of minerals most accurately tested?

2. Give examples of two species of mineral, the varieties of which differ widely in colour, and of other two in which the colour can be depended on as a criterion.

3. What are the physical and chemical characters of the chief kinds of coal supplied respectively for steamers, household purposes, and gas-making?

4. How far is crystallization in a certain form indicative of a definite composition?

5. State the several ores, and their approximate percentage in metal, from which iron is manufactured.

6. Name, and state the composition of, the various minerals which may be used to diminish the friction of bearings or axles.

7. Enumerate the mineral oxides which are employed on a large scale for paints, and the mineral substances with which some of them are often adulterated.

8. Name the principal formations in Britain in which large bodies of clay occur.

9. What is the generally received account of the origin of limestone strata?

10. Construct a table of the secondary or mesozoic strata, with their chief subdivisions.

11. Name some of the prominent fossil species by which you may distinguish the mountain limestone

NATURAL SCIENCES.

15

which lies beneath-from the magnesian limestone which lies above-the coal measures.

12. What are the various rocks, and from what formations are they taken, which are employed as millstones?

13. Describe the nature of the faults which interrupt the continuity of the coal strata.

14. Give an example of the utility of geological considerations in the laying out of a road in a difficult stratified country.

EXAMINATION PAPERS

USED AT THE

Examination of Candidates for

APPOINTMENT TO THE

Commissariat,

HELD

IN AUGUST 186 5.

LONDON:

HARRISON, 59, PALL MALL,

BOOKSELLER TO HER MAJESTY AND H.R.H. THE PRINCE OF WALES.

1 8 6 5.