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1. Explain how the coefficients of absorption of different substances for heat can be measured.
Taking the coefficient for lamp-black as white-lead comes out 09 when the sun is but 21 when an Argand lamp is used. account for the difference?
unity, that for used as source, How do you
2. What is the interpretation, on the kinetic theory, of the ratio (y) of the specific heats of a gas?
3. Give some account of platinum thermometry,' pointing out its advantages over other methods of measuring temperature.
4. What do you know of the effect of dissolved substances on the boiling point of water?
5. Give an account of the classical experiments by which the value of Joule's equivalent has been measured.
6. Deduce an expression for the force of attraction between the plates of a condensor, and explain the application of the formula to the attracted-disc electrometer.
7. Specify the unit in terms of which magnetic induction is measured, on the electromagnetic system. A coil of n turns, whose coefficient of self-induction is 7 cms., carries a current of c ampères. What is the flux of induction through the coil?
8. Explain how an alternating current of high voltage. can be transformed into one of low voltage. What change is made in the current strength? Is there a loss of energy in the process?
9. What do you know of the influence of temperature on the magnetisation of iron?
10. State what you know, as regards properties and theory, of the cathode rays.
1. Plot a curve showing the connexion between the deflexion of the end of a bar and its length, under a given load, using the cathetometer.
2. Find the index of the given glass plate by means of the microscope.
3. Compare the specific heats of the given liquids by the method of cooling.
[All Chemical changes must be expressed both in words and by equations. Candidates who neglect this instruction will not receive full credit for their answers.]
1. Mention three different types of reversible reactions with an example of each.
State the conditions determining the course of the reaction in each case.
2. State all you know regarding the new inactive gases of the atmosphere, and the positions which they occupy in the Periodic System.
3. Mention three cases of catalytic action. Can you give any explanations of the chemical changes involved?
4. State how the various members of the thionic acid series may be obtained. Give their constitutional formulæ. How do they decompose?
5. Compare in tabular form the hydrides of the nonmetals with which you are acquainted.
6. Describe, in outline, the old method for manufacturing sulphuric acid, and the newer commercial method, in which oxides of nitrogen are not employed.
7. Explain clearly and fully what is meant by a 'chemiIllustrate your answer by discussing what
tells you about the substance it is intended to represent. What is its name?
8. Describe the preparation of sodium carbonate from cryolite and the electrolytic method for its preparation from sodium chloride. For what technical purposes is it employed, and how would you test the purity of a given sample?
9. State what you know regarding the phenomenon of osmosis. What are the laws regulating osmotic pressure, and what is the dynamical theory advanced to explain them? What great fact lends support to the theory ?
[Special stress will be laid upon the written record of your work, and your attention is directed to the following points :
(a) Give a concise account of all the steps of the processes you employ, and of all the tests you use in searching for the different substances.
(b) If you find a metal capable of forming two series of compounds, ascertain, if possible, to which of these series the metal present in the substance you are examining belongs.
(c) In testing a solid, dry way tests, in addition to wet way tests, must be employed.
(d) In testing a solution, dry way tests should be employed in all cases where it is advisable to do so-in addition to liquid tests.
(e) Use confirmatory tests where it is possible to do so. (f) At the end of your paper, give a statement of the constituents found in each solid or solution given you for examination.]
1. Detect three bases in the solid marked 1.
2. Detect two acid radicals in the solution marked 2.
3. Detect acid and base in the solid marked 3.
PROFESSOR ANDERSON; PROFESSOR CUNNINGHAM.
1. Write an account of the monoclinic system. Explain the chief technical terms used to designate the faces and
2. Give some account of argillaceous rocks. In what respects do ancient rocks of this kind differ from modern ? Of what economic value are these rocks?
3. Explain how a river may have its course and volume altered in the course of time.
4. Describe the holohedral forms of the cubic system.
5. Give an account of the felspar group.
6. Give a summary of the evidences of slow movements of elevation and depression of the land.
PROFESSOR ANDERSON; PROFESSOR CUNNINGHAM,
1. A mineral crystallizes in the isometric system, but is usually massive; colour, azure blue; lustre, vitreous; diaphaneity, sub-translucent; H = 5·5; G = 2·3-2·5; fuses, BB to a white translucent or opaque glass, and, if calcined and pulverized, loses its colour in acids. It is decomposed with evolution of sulphuretted hydrogen, and solution gelatinizes in solution. What is this mineral? Account
for its colour.
2. Give an account of the Ordovician system in Great Britain. Note the divisions, lithological characters, and characteristic fossils.
3. What kind of creatures were-Iguanodon, Pterodactyl, Archæopteryx, Microlestes and Labyrinthodon? What are Terebratula, Ostrea, Cardium rhaticum, Fusus contrarius, Odontopteris ?
4. Describe the mineral composition and method of occurrence of the following rocks :-dolomite, greywacke, tachylite, liparite.
5. Give an account of the nature and distribution of the Permian strata of the British Islands.
6. Describe the structure of a Crinoid.
PROFESSOR BLANEY; PROFESSOR CUNNINGHAM.
1. Give an account of the modes of occurrence of glandular tissue in plants.
2. Describe the structure, origin, and varieties of medullary rays.
3. Give an account of the general morphology and reproduction of Fucus.
4. Describe the various forms of capsular (dry dehiscent) fruits.
5. State what you know respecting the influence of external conditions on the growth of plants.
6. Describe the morphology and life-history of Claviceps.
1. Make a preparation so as to demonstrate the structure of the reproductive organs of the plant provided. Sketch and describe your preparation, and refer to its Natural Order.