C. S. Weyman, The American Cyclopædia (1879)
“ In the latter half of the last century many new vineyards were planted by persons of means from Mentz, Frankfort, and other neighboring cities; and by the conjunction of capital with intelligent labor the Rheingau has become the most highly cultivated wine-growing region, perhaps, in the world. Within a comparatively recent period the discovery has been made that the Riessling grape, which yields the bouquetted wines, develops its finest qualities only when in a state of over-ripeness, without concurrent acetification. ”
