Titelblad van The Elements of Social Science
The elements of social science; or, Physical, sexual and natural religion. An exposition of the true cause and only cure of the three primary social evils: poverty, prostitution, and celibacy, by a doctor of medicine
11th enlarged ed. London, Truelove, 1873
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A 300/60
De editie van 1861 
is beschikbaar via Google Books.
is beschikbaar via Google Books.