Split the motto into two historical machines the essay runs as one. Horace, Epistles I.1.14, and Evelyn's diary for 17 September 1662, is "not sworn to a master's school." The Royal Society's later gloss is "verify by experiment." The inversion table needs the second. N-rays (Blondlot 1903; Wood in Nature, 29 September 1904) is the physics case that is not the psychology credit-market object: a hundred labs took a spectrum that was not there; the Leconte Prize was paid in 1904; the literature died when someone pocketed the prism. Shapin and Schaffer's pump count is the 1660s specimen of the same cut: "they could build their own pumps" is the claim that fails. Author dispositions stay author-owned.