Combine water and blueberries in a saucepan.  Cover and cook over low heat until berries are tender. Crush berries occasionally.  Measure berries, and for every cup of berries, add 1 cup of sugar.  Add remaining ingredients.  Cook, stirring constantly until jam is thick and holds its shape.   Pour into sterilized jars and cover with a thin layer of paraffin.
Makes about 3 cups