Haarlem, Kruseman & Tjeenk Willink, 1875, 356-384 pages, uncut , with lithograph portrait by N.J.W. de Roode/P. Blommers, original paper binding, Johannes Bosscha Jr. (18 November 1831 – 15 April 1911) was a Dutch physicist. Bosscha came from a family long known for their academic achievements. His great-grandfather and grandfather were classical scholars. His father, Johannes Bosscha Sr. (1797-1874), was a professor of history and literature and also was minister of church-state relationships in two governments (1853-1861). From 1844-1848 Johannes Jr. attended a Latin school in Amsterdam, after which he enrolled at Leiden University. In 1854 he obtained his doctoral degree (promotor Pieter Rijke) with a thesis on galvanometry. After a brief sojourn in Berlin he returned to the physics department in Leiden.