Q: I was emailing in regards to a book in which we have and it is printed by Henry Altemus Company Philadelphia and it is by Henry Drummond and it is called the Natural Law in the Spiritual World.

If you could please email some information I would appreciate it as there is no publication date on it.

A: This book is part of the Devotional Series (http://henryaltemus.com/series/series75.htm). This series of religious titles was published between 1895 and 1933. The book pictured here is part of Format 5 and was printed between 1898 and 1924. It originally came in a labeled box.

Its date can be determined by studying the ads in the back and figuring out when the books/series were published. This is relatively easy to do. Also if the title page says Henry Altemus Company the book was published in 1900 or later. If it says Henry Altemus it was published prior to 1900.