The Sex Side of Life / An Explanation for Young People

A Text-Book of Astronomy

The Sexual Life of the Child

The Biology, Physiology and Sociology of Reproduction / Also Sexual Hygiene with Special Reference to the Male

Text Book of Biology, Part 1: Vertebrata

The Book of Religions / Comprising the Views, Creeds, Sentiments, or Opinions, of All the Principal Religious Sects in the World, Particularly of All Christian Denominations in Europe and America, to Which are Added Church and Missionary Statistics, Toget