NMLP P-035750 · True-first precedence · minted 2026-07-09

First Principles

Herbert Spencer · Williams and Norgate (London) · 1862

The work was issued to subscribers in six quarterly parts between October 1860 and June 1862, under a prospectus circulated in March 1860, before being gathered into the first bound-book edition of 1862; both the parts and the 1862 book collection predate Spencer's later revised editions.

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New Mexico Literacy Project — True-first precedence NMLP P-035750 for "First Principles" by Herbert Spencer (https://newmexicoliteracyproject.org/id/point/p-035750, CC BY 4.0, dataset DOI 10.5281/zenodo.21184548).