Wash and slice cucumbers. Do not peel.

7 c. cucumbers
1 c. chopped onion
2 tbsp. salt

Mix this together and let stand for 2 hours and drain. Do not rinse.

Meanwhile mix and boil:

1 c. white vinegar
2 c. sugar
1 tsp. celery seed
1/8 tsp. alum

Boil slowly, stirring for about 5 minutes. Remove from heat. When cool pour over cucumbers, mixing well. Pack tightly in sterilized jars. Seal and keep in refrigerator.