Oats an Berry Crumb Dessert

2    cups quick cooking oats (uncooked)
1    cup firmly packed brown sugar
1    cup flour
3/4  cup butter or margarine, melted
1    Tbsp. flour
Pinch salt
1/2  cup sugar
3/4  cup water
2    Tbsp. lemon juice
2    cups fresh blueberries

Mix oats, brown sugar and flour.  Add butter 
and mix well.  Spread mixture in 8 in. square 
pan, setting 3/4 cup aside for topping. 
Combine flour, salt, sugar, water, lemon juice 
and blueberries in saucepan and simmer for 5 
minutes.  Poor over oat mixture and sprinkle 
with remaining mixture.  Bake for 35 minutes 
at 350 degrees.  Can be served with ice cream 
or whipped topping.