Green Tomatoe Pickles

Soak overnite 1 gallon green tomatoes sliced in saltwater. Peel and slice 4 large onions. Soak onions and tomatoes in saltwater overnight. Drain thoroughly. Bring to boil the following:
2 1/2 cups sugar
2 cups vinegar
1 Tbsp. celery seed
1 1/2 tsp. tumeric
1 tsp. curry powder
1 tsp. alum
1/4 cup mustard seed

Add tomatoes and onions. Boil 5 minutes, pack in jars and seal.