SECRETARY'S REPORT. 241 



10. A liquid contains soluble phosphate of lime, gypsum, and sulphate 

 of ammonia ; how can you recognize these compounds ? 



Organic Chemistry. 



1. Explain the following terms : — decay, fermentation, and putre- 

 faction. 



2. In what respects do organic acids differ from mineral acids, alka- 

 loids from alkalies ? 



3. Mention the proximate and ultimate constituents of wheat, pota- 

 toes, turnips, clover, pease, and cabbage. 



4. State the composition of woody fibre, gun-cotton, starch, milk- 

 sugar, lactic acid, and cane-sugar. 



5. What are the changes which organic matters, containing nitrogen, 

 undergo during putrefaction ? 



6. What is the chemical constitution of fatty matters ? 



7. Describe the preparation and properties of urea. 



8. Mention the adulterations which are sometimes found in milk, and 

 the mode of detecting them. 



9. Write a paper on the chemistry of brewing. 



Agricultural Chemistry. 



1. What are the sources from which plants derive their nitrogen and 

 carbon ? 



2. When is it desirable to preserve as much as possible the organic 

 matter in soils, and when may it be destroyed without injury to the land ? 



3. How do you ascertain the commercial and how the practical value 

 of manuring matters ? 



4. What is the composition of blood-manure ? 



5. Describe the preparation and properties of a good super-phosphate, 

 and give reasons why it is more economical to buy this manure than to 

 prepare it on the farm. 



6. Write a paper on guano, stating the properties and composition of 

 good Peruvian and of inferior guano, the adulterations in guano, the mode 

 of detecting them, and the crops most benefited by guano. 



7. What is the composition of liquid manure and its agricultural 

 value? 



8. Can sewage economically be converted into a portable manure ? 

 Give reasons. 



Anatomy and Physiology. 



1. What general principle should regulate the breeder of stock in the 

 selection of animals for that purpose? 



2. What diseases are likely to be transmitted from parents to off- 

 spring ? 



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