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Library Baruch Spinoza

Manuscript

Treatise on the Rainbow (lost)

Tractatus de iride

Retrato anónimo de Spinoza (Wolfenbüttel)
byBaruch Spinoza

A treatise on the optics of the rainbow, consistent with his trade as a lens grinder and with his letters on optics to Hudde and Jelles. Some scholars have proposed identifying it with the anonymous booklet Stelkonstige reeckening van den regenboog (1687), a disputed hypothesis.

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Editions and translations · 0

Authorship note

The editors of the Opera posthuma mention it among the unpublished writings; according to Colerus, who learned it from the Van der Spyck family, Spinoza threw it into the fire some six months before his death.

Editions and translations

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Other works by Baruch Spinoza

Sources

  • Colerus, Johannes. Korte, dog waaragtige levens-beschryving van Benedictus de Spinosa. Ámsterdam, 1705; trad. francesa «La Vie de B. de Spinosa» (1706), en Œuvres de Spinoza, trad. Émile Saisset, t. II, París, Charpentier, 1861 (Wikisource).

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