Agricultural Education — Examination Papers, 1882. Ixxxi 
II. Agricultural Chemistry. 
Wednesday, May 10</t, from 2 p.m. till 5 p.m. 
1. Point out the differences in tlie chemical composition of fresli 
and rotten dung. Describe tlie best way of making and applying 
dung to the land with a view of preventing loss in fertilising 
matters. 
2. What is the chemical character of the drainings of dung-heaps, 
and theu" fertilising value ? 
3. What are the chemical compounds which occur in the drainage- 
water from highly-manured land? 
4. Write a short paper oii the improvement of grass-land. 
5. AVhat is the composition of soot? How do you determine the 
agricultural and commercial value of different samples ? 
6. In what respect does gas-lime differ from ordinary lime ? Point 
out the precautions which should be observed in applying gas-lime 
to the laud? 
7. Explain the benefits which result from the growth of clover as 
a preparatory crop for wheat. How do you account for the better 
yield of wheat after clover which has been made into hay or allowed 
to seed, than after green clover fed off on the land by sheep ? 
8. How do you detect the presence of arsenic in a poisonous 
sheep-dip ? 
9. Write a short paper on the foods which are best adapted to 
produce rich and abundant milk in the most economical manner. 
EXAMINATION IN MECHANICS AND NATUEAL 
PHILOSOPHY. 
Maximum Number of Marks, 200. Pass Number, 100. 
Thursday, May 11th, from 10 a.m. till 1p.m. 
1. How are mass and density measured? 
If a cubic foot of iron weighs 479i lbs., and a cubic inch of 
water 252-5 grains, compare the masses of these bodies, and their 
densities. 
2. Any number of forces act in one plane on a body capable of 
turning freely round a fine axis at right angles to that plane ; what 
relation must exist between the forces if they keep the body at 
rest ? 
To draw a nail out of a packing-case in the usual way, I get the 
head of the nail between the claws of a hammer whoso head rests on 
the case, touching it at a distance of 1 j inch from the nail ; if the 
handle is 14 inches long, and I pull at the end of it with a force of 
