lo Dec, 1910.] 



Building Flints for Settlers. 



783 



sive (about ^250 per engine), enable it to cross tlie loosest of sand country 

 pulling a full load. These attachments have already been described in 

 the Journal for May, 1908. There are two considerable drawbacks to 

 the use of the steam traction engine in mallee scrub, viz. : — difficulty in 



obtaining sufficient water (about 120 gallons per hour) and liability to start 

 bush fires. An oil tractor has been tried with Bottrill's attachments, but 

 it is not sufficiently heavy or powerful. It is likely, however, that the oil 

 ti actor will eventually prove the most useful. 



