TENTH ANNUAL YEAR BOOK— PART X 435 



144 feet of %-inch rods 3.00 



5 doors 9.20 



Mason work 96.00 



Bolts for chute 60 



$285.28 



The cost of Iowa silo No. 7 was furnished by its owner in the follow- 

 ing statement: 



Labor $ 65.00 



Brick 74.00 



Wire 18.00 



Cement 30.00 



Lime 5.00 



Lumtier 5.00 



Steel rods and bolts 10.00 



Four doors 8.00 



$215.00 



The following is the cost of two Iowa silos, Nos. 9 and 10, each 18x36 

 feet, 30 feet above ground, 6 feet below, from the statement of the owner, 

 which does not include price of roof: 



Tile, 4x5x12, at $18.22 per M $174.25 



Wire for reinforcing 63.00 



60 bbls. of cement @ $1.35 81.00 



Brick masons @ 62V2C per hour 124.23 



Tenders at 35c per hour 60.35 



Other help 31.10 



Excavating 23.60 



Lumber for forms and doors 23.75 



Sand 45.00 



Hauling tile 27.50 



Six hbls. lime 6.60 



Work on foundation 23.24 



Boarding of hands 33.60 



Incidentals, including hardware, horse feed, railroad 



fare, etc 32.85 



$750.37 



Silo No. 13 was built by contract for $381.60, complete with roof. 



Attention Is called to the fact that where experimental silos were 

 constructed in co-operation with the Agricultural Engineering Section 

 no charge was made for superintendent of construction other than ex- 

 penses, but his time has been included in the Section's estimate at 50 

 cents per hour. 



