Exercise 9 (Continued) 



Step 4, — When a surveyor's level is available it will be found very easy 

 to locate the proper levels at the different points in the foundation wall by 

 setting the level at the leveling stake in the center of the house area and from 

 this point sighting with leveling pole on the various points where levels are to 

 be marked. Follow this method on another location or use this method to 

 check the work in step 3. 



Leading Questions. — 1. How large a house did you locate and lay out? 



2. What special features led to the selection of the site chosen? 



3. Explain the use of the 6-8-10 right-angle triangle in laying out foun- 

 dation lines. 



4. What are batten boards and how and where are they placed? 



5. In what direction did you face the poultry house and why? 



6. In using leveling board and spirit level how did you avoid any pos- 

 sible inaccuracy of leveling board? 



7. How can you test foundation levels by the use of the same instru- 

 ments after they are once determined? 



8. In using the surveyor's level what errors did you find in former work? 

 Note. — If time permits, one or more exercises should be given at which 



the students should construct themselves a portable young stock colony 

 house. For plans and styles see Productive Poultry Husbandry, pages 

 141, 354, and 373. 



38 



