Ixxx Agricultural Education — Examination Papers, 1882. 
10. Describe the proper management of young stock on a farm 
suitable for rearing cattle from the time they are brought in as calves 
until they are two years old. 
11. When is it desirable to give milking cows artificial food ? 
12. How many horses per 100 acres are required to work a farm of 
arable land, the soil being light ? 
The same, the soil being heavy ? 
EXAMINATION IN CHEMISTEY. 
Maximum Number of Marks, 200. Pass Number, 100. 
Wednesday, May 10th, from 10 a.m. till 1 p.m. 
I, General Chemistry. 
1. Define an element in chemistry, Name some elements whicli 
are found in nature uucombined, and others which are only met with 
in combination. What are the characters of ozone, and what are the 
reasons for considering it an elementary substance ? 
2. State the composition of atmospheric air ; and explain how to 
find the proportions of (1), aqueous vapour, (2) carbonic acid, present 
in it at any given time and place. 
3. Show by examples by what means uncombined nitrogen can be 
brought into combination with other elements. How can you deter- 
mine whether an organic substance contaijis nitrogen ? 
4. State and explain the chemical action which results from ex- 
posure to the atmosphere of (1) iron, (2) copper, (3) lime. By 
what tests can you detect the presence of those three srbstances in 
solution ? 
5. Explain generally the chemical action which ensues when wood 
is heated in a vessel which has only a small opening. Give an 
account of the jn-opcrties of charcoal. 
6. Define equivalent weights in chemistry, and illustrate your 
definition by comparing compounds of chlorine with those of iodine, 
and comi)ounds of iron with those of aluminium and magnesium. 
7. Show how to determine tho proportions of sodium chloride and 
sodium nitrate in a mixture of the two. 
8. Explain the chemistry of the conversion of alcohol into acetic 
acid, and the conditions under which this change may be brought 
about. 
9. Describe the general chemical characters of tannin, and give 
some explanation of its antiseptic power. 
