Show peculiar fertilizer in tasmania tasmania is a great farming and truit country and there is R good local market for all tho the spent oil bealo from tho the distilling retorts ro torta the rock from which tho the oil has been taken sells flolla at 2 per ton for agricultural uses the assays essays do not disclose any rich fertilizing matter in tho the spent shale yet when it Is pulverized and distributed over farming fanning lands and garden soils bolls it produces such wonderful results as to make the demand tor for it greater than tho the supply it appears to act on tho the soil mechanically by aerating it and possibly by condensing moisture from tho atmosphere and transferring it to the crops it Is expected that tho the prices obtainable for the spent will eventually cover mining and retorting costs dr arthur selwyn drown brown in the engineering magazine |