- Part of The Phenomena and Laws of Heat
Frontispiece illustration contains three figures. Figure six is entitled "Spectrum showing the absorptive power of Sodium vapor," which is a spectrum of sodium. Replicating Sir Isaac Newton's (1642-1727) discovery,…
- Praeparatio Mercurii ad Lapidem per Regulu/am ♂ [Martis] ✱tum [Stellatum] et Lunam, ex MSS. Phi Americani
- After 1670 – before 1678
The manuscript—"On the Preparation of the [Sophick] Mercury for the [Philosophers'] stone by means of the stellate regulus of Mars [i.e. iron] and Luna [i.e. silver] from the Manuscripts of the American Philosopher"—was…
Stamp depicts the launch of an Atlas rocket carrying a Mercury single-man spacecraft, Newton, the fabled apple, and a satellite (possibly NASA's first Orbiting Astronomical Observatory launched in 1966).