576 Journal of Agriculture, Victoria. [10 Aug., 1911. 



This does not include cartage from the station — about a mile. Since it 

 was erected, tliere has been an increa.se in cost of botli material and 

 labour. 



The silo is now being filled the fifth time, three times with maize 

 and twice with oats. In filling, care was taken toi trample well round the 

 outsides, not much in the middle. There has been no drawing away from 

 the walls, which is a frequent cause of waste. Mr. Greaves says: — 



The silo and its advantages have given great satisfaction. Practically no 

 waste, if some weight is used on top. There is no sign of weakness in any part 

 of the structure. 



By mathematical calculation this structure does not show sufficient 

 margin of safety, though the experience of Mr. Greaves points to it being 

 safe in practice. 



Mr. J. A. S. Brazenor, architect, Ballarat, who constructed the rein- 

 forced brick water tanks referred to, has furnished the followdng descrip- 

 tion of a silo 20 ft. high x x6 ft. diameter : — 



Excavate to a sound foundation with a fall to the centre. A footing 

 of bricks on edge bedded level on concrete with 6 in. of cement concrete 

 to form the bottom of the silo. 



Build the base of twoi rings of 4^ in. bricks on edge; and on this, 

 3 in. in from the edge, build 9 in. work on the flat, 3 ft. high. Then 

 single l)rick (4J7 in. work) 37 feet <>r higher. No. 8 galvanized fencing 

 wire is run in the centre of each tier, in the mortar. Do not break the 

 wire, but bend it up between the bricks and continue on the next course. 

 All joints of the brickwork toi be flushed up and neatly jointed. 



Provide openings, say 2 ft. 6 in. wide x 2 ft. 3 in. deep, 3 ft. x 2 in. 

 X I in. iron lintel ; also, to each opening, an iron shutter 3 ft. wide x 

 2 ft. 6 in. deep, 22 gauge flat galvanized iron. When the cement is set, 

 cut the wire bonds where showing across the openings. The openings, 

 may be 5 ft. from the ground, then 10 ft. and 15 ft. 



This silo would take 6,500 bricks to build it. The total cost, at 

 Ballarat prices, would be ^43 18s.. allowing 50s. per 1,000 for bricks; 

 cement, i6s. per cask; excavating, is. 6d. per yard; sand, 3s. per yard; 

 wire, IIS. per cwt. ; bricklayers, 12s. 6d. per day; labourer, 8s. j>er day. 

 If a dry sound foundation were available about ^^ 5s. might be saved 

 on the concrete bottom. 



