This section is from the book "Cooking Vegetables. Practical American Cookery", by Jules Arthur Harder. Also available from Amazon: The Physiology Of Taste.
Unicorn. Einhornwurzel.
No. 1664. - This is a hardy annual plant with peculiarly shaped seed-pods, which, when young and tender, are highly prized for pickling, and by many are considered superior to cucumbers. The pods are produced in large numbers and should be gathered when about half grown, as they are worthless when the flesh hardens.
No. 1665. - Sow them in April or May, in open ground, about three feet apart in each direction, as the plants spread considerably when growing. They are cultivated easily.
 
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