This section is from the book "Canning, Preserving Pickling and Fruit Desserts", by Jeanette C. Van Duyn. Also available from Amazon: Canning, Preserving, Pickling And Fruit Desserts.
Take the green seed after the flower has dried off. Lay in salt and water for two days, and then in cold fresh water for one day. Pack into bottles and cover with boiling vinegar, seasoned with mace, peppercorns, and a little white sugar. Cork and set away. These are a good substitute for capers, to be used with boiled mutton.
Twelve pounds green tomatoes, two pounds young cucumbers, two green peppers, four onions, two quarts cider vinegar, one cup salt, one cup sugar, one tablespoon peppercorns, one tablespoon mustard seeds, one teaspoon whole cloves. Chop the vegetables, mix with the salt, and leave to stand for 12 hours, then drain thoroughly. Heat the vinegar, sugar, and spices, add the chopped vegetables and bring to boiling point. Put into clean jars and seal tightly.
 
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