COMMISSION OF IMMIGRATION AND HOUSING. 



The cost of this fly-proof composting pit is as follows : 



51 



Figure 39 shows a composting pit, knock-down system, for temporary 

 camps. This pit has a capacity of 320 cubic feet and will store the 

 offall of ten horses for a period of twenty-one days. 



The bill of material is as follows: 



2 pieces 4" x 6" 22' redwood skids. 



2 pieces 4" x 4" 12' redwood girders. 



2 pieces 2" x 4" 12' Oregon pine plates. 



2 pieces 2" x 4" 22' Oregon pine plates. 

 16 pieces 2" x 4" 2' 6" Oregon pine studs (sides). 



8 pieces 2" x 4" 3' Oregon pine studs (ends). 



4 pieces 2" x 4" 4' Oregon pine studs (ends). 

 16 pieces 2" x 4" 7' Oregon pine rafters. 



1 piece 2" x 4" 22' Oregon pine ridge. 

 10 pieces 1" x 8" 22' pine rustic sides. 

 12 pieces 1" x 8" 4' pine rustic ends. 



2 pieces 1" x 8" 12' pine rustic ends. 

 2 pieces 1" x 8" 10 7 pine rustic ends. 

 2 pieces 1" x 8" 8' pine rustic ends. 

 2 pieces 1" x 8" 5' pine rustic ends. 



4 pieces 1" x 6" 12' Oregon pine, s. 2 s., tongue and groove, No. 2, for door. 



4 pieces 1" x 6" 10' Oregon pine for door frames. 

 356 square feet canvas for roof. 

 1 pair 4" strap hinges for door. 



2 end gable irons marked "A." 



6 rafter irons marked "B." 

 16 angles at rafter connection marked "C." 



8 angles at corners marked "D." 



6 |" x 11" bolts; plates to skids. 



4 i" x 9" bolts; skids to girders. 

 12 |" x 7" bolts for connecting parts. 

 16 |" x 3" bolts for connecting parts. 

 44 |" x 5'' bolts for connecting parts. 



The estimated cost of this temporary composting pit is as follows : 



Figure 40 shows a pile of manure 50 feet long, 45 feet wide and 

 4 feet high. This manure is near the mess, cook and bunk houses. 

 Millions of flies breed here during the eight months this manure is 



