Bernoulli (Johann) Opera Omnia, 4 vol., first edition, titles in red and black, title vignettes, head- and tail-pieces and 91 folding engraved plates, lacking 2 portraits, bookplates removed from pastedowns, vol.2 lacking half-title and title, A-B² defective from damp with substantial loss to text, some damp-staining and spotting, some plates with fore-edge browned and creased, 4to, Lausanne and Geneva, M.M. Bousquet, 1742.

⁂ The collected writings of Johann Bernoulli (1667-1748), who along with his brother Jacob, was a major figure in the development of mathematics, particularly calculus and probability theory in the eighteenth century.