202 



FAEM BUILDINGS IN SOUTH AFEICA 



£120 at the coast. These prices are for four pens and yards, i.e. one more 

 than shown in Figs. 155a, b. The cost may be lessened by constructing 

 the piggery as a lean-to to another building, care being taken to leave 

 an opening for ventilation along the upper edge of the roof. If materials 



Fig. 159. 



of construction, such as good clean sand for concrete and flag-stones for 

 the floor, are obtainable near the site, the cost may be still further 

 reduced. 



Colony System 



In this system the pigs are domiciled in separate houses, each 

 house being situated in its own "camp." That is to say, an area of 

 suitable grazing land would be fenced off into camps, and each camp 

 would be provided with its own pig house. 



