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Elementary Experimental Science. — For Glass D. Time allowed: 3 hours. 1. How would you arrange an experiment to show to a large class that in the case of two parallel forces acting upon a lever and producing equilibrium the pressure upon the fulcrum is equal to the algebraical sum of the two forces ? 2. Explain in detail how you would determine the specific gravity (a) of cork, (6) of sand. 3. What do you understand by mechanical work ? How would you prove in the case of any one of the mechanical powers that no more work is obtained from the machine than is put into it ? 4. What reason have you for thinking that light and sound travel at different speeds ? How has the velocity of sound in air and in water been determined ? 5. Draw a diagram representing the real and apparent path of a pencil of rays from a luminous point below water to an observer's eye above water. 6. Describe experiments to show (a) that equal weights of water and mercury give out different quantities of heat in cooling through the same range of temperature ; (b) that more heat is required to melt an ounce of ice without changing its temperature than to raise the temperature of one pound of cold water five degrees Fahrenheit. 7. Explain what is meant by conduction, convection, and radiation of heat, and mention any practical uses of convection currents. 8. How would you prepare strong alcohol from beer? Explain the rationale of the process. 9. What experiments could you arrange to show the properties of a thin wire through which an electric current is passing ? 10. How would you fill a jar with chlorine and another with hydrochloric acid? What experiments would you make to show the difference between the two gases ?

Elementary Science. — For Class E. Time alloived: 3 hours. 1. What is meant by energy? Distinguish between kinetic energy and potential energy. Give examples. 2. Define as fully as possible the terms malleability, ductility, elasticity, diffusion, and viscidity. 3. Describe a system of pulleys, and explain its action. 4. What is the "velocity of sound in air, how has it been determined, and how is it influenced by temperature ? 5. State the laws which govern the reflection and refraction of light, illustrating your answer by diagrams. 6. Explain, with examples, what is meant by latent heat. 7. Describe experiments to show the operation of magnetism. 8. Give examples showing how chemical decomposition may be effected by electricity. 9. Name the compounds formed by burning sulphur, phosphorus, carbon, iron, and magnesium in oxygen, and state the properties of these compounds. 10. Name the principal constituents of food, and state the chemical changes which take place during the passage of the food through the body.

Domestic Economy and Laws of Health. — For Class E. Time allowed : 3 hours. 1. Name the more important impurities which may exist in water. Which of these impurities would you specially guard against in selecting water for drinking and washing purposes respectively, and why ? 2. Briefly describe the constituents of milk. Why is milk considered a perfect food? 3. State what is the normal temperature of the body, how it is maintained, and what are the chief causes of loss of heat. 4. Give a short description of the digestive organs, and state the chemical changes produced in the several constituents of food in passing through the body. 5. Describe the structure and action of the skin. Why is personal cleanliness so essential to good health ? 6. Explain why brown bread is more nutritious than white. What takes place when bread is made into toast ? 7. Describe how you would cook (a) a piece of corned beef, and (6) a sirloin of beef, giving reasons for each step in the process. 8. What takes place when a potato is boiled ? What advantage is gained when it is boiled in its skin? _..,.. 9. What precautions would you take in the case of an infectious disease breaking out in a dwelling ? 10. Why is flannel generally superior to linen, cotton, and silk as an article of clothing ?

Elementary Knowledge of Agriculture. — For Glass D. Time allowed: 3 hours. [Illustrate your answers with diagrams where possible.] 1. Describe the different parts of such a flower as wallflower. Describe the process of fertilisation from the time when the pollen reaches the pistil. 2. Write a short description of the chief constituents of plants. 3. In what forms do the following constituents occur in soils : Lime, potash, silica, nitrogen, and phosphoric acid ?