[2] His principal compilations and publications were: Source:[8] "In the year 1877 the late Mr. Henry Stevens of Vermont, under the pseudonym of ' Mr. Secretary Outis,' projected and initiated a literary Association entitled THE HERCULES CLUB.

The following extracts from the original prospectus of that year explain this platform: "The objects of this Association are literary, social, antiquarian, festive and historical ; and its aims are thoroughly independent research into the materials of early Anglo-American history and literature.

The founders of the club believed that many valuable historical documents of the Age of Discovery still awaited publication and selected ten topics for which members would contribute research and writings.

The ambitious list of topics which they selected for their initial publication were as follows: "The co-operative objects of the Association, however, appear never to have been fully inaugurated, although a large number of literary men, collectors, societies and libraries entered their names as Members of the Club.

Also Stevens was not a mathematician and not equipped to evaluate properly Hariot's mathematical writings including his book on algebra (Artis Analyticae Praxis) which was published posthumously (1631).