Zanzibar Cocktail

from Hollywood's Favorite Cocktail Book

• {1} \frac{1}{2} Whole of Lemon Juice
• 1 Glass of Gin
• 3 Glass of French Vermouth
• 1 Spoon of Sugar Syrup
  • or 2 Spoon of Sugar Syrup

If desired, 1 spoonful orange bitters. Shake well and serve with a piece of lemon rind.