New books in this semi-monthly series were published between 1893 and 1901 with volumes #1-66. Thereafter the reprinted pamphlets were published for several years. Approximate dating of these books can be done by looking at the Lupton address at the top of the cover and correlating it with the address/date list above. Its content varied with topics outside the mainstream of medicine to law, magic, song books, etc.

In post 1901 magazines the books of this series were numbered with the "h" prefix.