J. C. Volkamer, The Book of Citrus FruitsEDITORS NOTE Citrons, lemons, and bitter oranges float like heavenly bodies above Italian villas, Nuremberg gardens, and picturesque countryside in J. C. Volkamers ode to the citrus fruit. Reproducing a hand colored set of copper plates, this Taschen J. C. Volkamer, The Book of Citrus Fruits shows 170 varieties of citrus fruits, reviving a time when citrus fruits were exotic.