Prizes for Essays and Reports. xxxvii 



5. The cost, or presumed value, of each pair of horses and oxen, with 



their gear, when put to work ; and their value at the close of 

 the comparison. 



6. The comparative number of oxen or horses which are required to do 



the same work. 



4. On the Construction of Cottages. 



The Gold Medal, and Mr. Slaney's addition of Ten Sovereigns to 

 the prize, will be given for the best Treatise on the Form and Con- 

 struction of Agricultural or other Cottages, with the Outbuildings and 

 Conveniences belonging to them ; together with suggestions for the best 

 methods of constructing Chimneys, Fireplaces, Ovens, Floors, Roofs, 

 and whatever may conduce to the health and comfort of the occupiers ; 

 to comprise Plans, Elevations, and Estimates, in which due regard is to 

 be paid to reasonable economy. 



5. On the Drainage of Land. 



Fifty Sovereigns, or a Piece of Plate of that value, wdll be given for an 

 Account of the best Mode of Under-draining Land, regard being had to 

 variety of Soil, Subsoil, and other local circumstances. 



Competitors for this prize will be required to give information on the 

 follov.'ing subjects of inquiry : — 



1. Depth and frequency of drains. 



2. Materials, — tiles, stone, or peat. 



3. Filling in, whether with tenacious or porous earth. 



4. Expense of the various methods. 



5. Disposition of drains. 



6. Fall required. 



7. Direction of drains on land having a considerable slope. 



8. Benefit in increasing crop, admitting new modes of culture and 



stocking, advancing the time of harvest, reducing the amount of 

 horse-labour required on heavy clays, improving climate, &c. 



9. Durability of drains. 



10. Past and present practice of draining in England. 



11. Districts of England which require the most extensive efforts in 



under-draining. 



6. On Liquid Manure. 



Ten Sovereigns, or a Piece of Plate of that value, will be given 

 for the best Account of Results obtained in the application of Liquid 

 Manures, as artificially obtained by composition, or as occurring in their 

 ordinary and natural state. 



Competitors will be required to attend to the following points, in the 

 case of each of these classes of liquid manure : — 



Artificial Liquid Mamire. 



1. The nature of the substances either dissolved or suspended in liquid 



manures artificially composed. 



2. The soils to which they are best adapted ; and whether to pasture or 



arable land. 



3. The quantity, mode, and season of their application. 



