Here is the sentence:

Female sexuality within the working classes of Western Europe was acknowledged in a way that it was not within the middle class.

Here is a more detailed excerpt:

"Female sexuality within the working classes of Western Europe was acknowledged in a way that it was not within the middle class. Demographic evidence reveals a sharp rise in illegitimacy between 1750 and 1850. In Frankfurt, Germany, for example, where the illegitimacy rate had been a mere 2 per cent in the early 1700s, reached 25 per cent in 1850. In Bordeaux, France, in 1840, one-third of the recorded births were illegitimate."