Newly Discovered Work by P.J. Enk

I never knew that Dutch classical scholar P.J. Enk (1885-1963) wrote a book about sex. From JSTOR:

The actual book reviewed by Clausen:

Sex. Propertii Elegiarum Liber Secundus. Edidit P.J. Enk. Pars Prior, Prolegomena et Textum Continens. Pp. 127. Pars Altera, Commentarium Continens. Pp. 482. Leiden, A.W. Sijthoff, 1962.

I.e. "Second Book of Sextus Propertius' Elegies," etc.