Agricultural Education — Examination Papers^ 1874. Ixxxix 



8. State common j^rices for piece-work, including -wheat hoeing, 

 turnip hoeing, and singling, topjjing and filling mangolds into carts, 

 mowing meadow-hay, mowing and lying wheat, and filling muck-cart, 

 with the district to which the statements apj^ly. 



9. What are suitable depths and distances for parallel pipe-tile 

 drains in a heavy clay soil without gravel, sand-beds, or springs ; and 

 in a porous sandy subsoil respectively ? What arc the reasons for 

 drainage with or against the gi'eatest fall, supposing the surface to be 

 on a uniform slope, and not laid up in high-backed lands or ridges ? 

 Describe the successive operations in setting out the work, excavating, 

 levelling, laying the pipes, &c. ; and give an estimate of the ordinary 

 cost of pipes, haulage, and manual labour, at the dei:)ths and distances, 

 and in the kind of soil supposed, taking wages of drainers at 4s. per 

 day. 



Afternoon viva voce examination commencing at 2 d'clocl:. 



EXAMINATION IN CHEIMISTKY. 



Maximusi Number of Marks, 200. Pass Number, 100. 



I. General Chemistry. 



Wednesday, April 15th, from 10 a.m. till 1 p.m. 



1. Describe three different ways in which water is decomposed, and 

 show what becomes of the components in each case. 



2. Give an account of the preparation and proj)ertics of nitrogen, 

 chlorine, and potassium. 



3. Describe the preparation of hydro-chloric acid, and explain the 

 chemistry of it. Show how to find the proportion of acid in any 

 sample of solution of that acid. 



4. Explain the reactions of caustic soda with (1) sulphuretted 

 hydrogen, (2) ferric chloride, (3) stearine. What quantity of caustic 

 soda will be required to precipitate all the iron from a solution 

 containing 130 grains of ferric chloride? (Na : Fe : CI = 23 : 56 : 35'5.) 



5. Give the composition of the oxides of carbon and of marsh gas. 

 Mention the circumstances under which they are naturally formed. 

 Given a mixture of the oxides of carbon, how can you find out the 

 proportion in which they are mixed ? 



6. A bladder is filled with a solution of alum mixed with ammonia, 

 is tied up, and immersed in a tub of water : state the results which 

 ensue, and point out the general principle on which they depend. 



7. Explain the formation of acetic acid from beer, and the circum- 

 stances which are most favourable to the jirocess. By what other 

 means may the like acid be procured '? Why does bottling beer, which 

 has begun to turn sour, stop the acetification ? 



