Ixxxvi Agricultural Education — Examination Papers, 1872. 
EXAMINATION IN CHEMISTEY. 
Maximum Number of Makes, 200. Pass Number, 100. 
1. General Chemistry. 
Wednesday, April 17th, from 10 a.m. till 1 p.m. 
1. Wtat is the Composition ol the Atmosphere ? 
2. Describe the general characters of Salts of Ammonia, and a good 
method of determining Ammonia quantitatively. 
3. Mention the most important Compounds of Nitrogen and 
Oxygen, and describe their principal properties. 
4. Give an outline of the Manufacture of Oil of Vitriol. 
5. How do you distinguish Lime from Magnesia ? 
6. What is the chemical relation between Starch, Gum, Glucose, 
Cane-Sugar, and Alcohol ? 
7. Mention some of the means of arresting the incipient decomposi- 
tion of Organic matters, and the best plans of hastening the putre- 
faction of animal matters. 
8. Describe some of the principal constituents of Blood. 
9. What are the chemical changes which urine undergoes in 
becoming putrid? Point out the differences in the urine of herbi- 
vorous and carnivorous animals. 
II. Agricultural Chemistry. 
Wednesday, April 17th, from 2 p.m. till 5 p.m. 
1. Mention some of the causes of sterility of soils, and the means of 
removing them. 
2. Under what circumstances is Lime advantageous to land ? How 
and at what time of the year should it be applied ? 
3. State the various methods of determining the quantity of Phos- 
phoric acid in a soil ; which method yields the most accurate results ? 
4. Explain the chemical changes, if any, that occur in the following 
solutions in the act of percolating soils of various descriptions. 
1. Nitrate of Soda. 
2. Nitrate of Potash. 
3. Sulphate of Ammonia. 
4. Phosphate of Ammonia. 
5. Chloride of Sodium. 
G. Chloride of Potassium. 
