36 
6. Sesquioxide of Iron. 
Phosphate of Sodium. 
Sulphate of Magnesium. 
Arsenious Acid. 
Nitrate of Cobalt. 
7. Potassium Alum. 
Sulphate of Nickel. 
Nitrate of Bismuth. 
Ferrocyanide of Potassium. 
8. Potassium Alum. 
Nitrate of Cobalt. 
Citric Acid. 
Acetate of Lead. 
Sesquioxide of Iron. 
9. Potassium Alum. 
Arsenious Acid. 
Tartar Emetic. 
Chloride of Tin and Am- 
monium. 
10. Potassium Alum. 
Tartar Emetic. 
Chromate of Potassium. 
Ferrocyanide of Potassium. 
Arsenious Acid. 
11. Potassium Alum. 
Chloride of Manganese. 
Phosphate of Sodium. 
Arsenious Acid. 
Sulphate of Zinc. 
12. Potassium Alum. 
Sesquioxide of Iron. 
Nitrate of Cobalt. 
Sulphate of Nickel. 
Chloride of Manganese. 
A. W. Hofmann. 
EXAMINATION IN PHYSICS. 
Morning Papers. 
[ Three of these six.'] 
1. You are to convert a bar of iron into a permanent magnet 
by the action of the earth ; how will you do it ? In what respect 
does iron differ from steel as regards the acceptance and retention 
of magnetism ? 
2. How do you suppose the magnetic quality to be distributed 
in a magnet ; describe some experiments which would justify the 
conclusion that every magnet is an assemblage of molecular 
magnets. 
3. Can you devise an experiment to show clearly that a bar of 
iron in proximity with a magnet is itself a magnet, possessing 
like the latter two opposite poles and a neutral point between 
them ? 
4. State what you know regarding the origin and properties of 
the magnetic curves or lines of magnetic force. 
5. State what you know regarding terrestrial magnetism, 
defining the terms, declination, inclination, magnetic equator, 
magnetic poles. State also what you know regarding the diurnal 
variation. 
6. State what you know regarding the phenomena of 
diamagnetism. 
