Arnisæus, Henningus

, a German medical and political writer, was born in the environs of Halberstadt, in Lower Saxony. He studied medicine, and travelled into France and England in pursuit of information in that science. He afterwards taught it with much reputation at Francfort on the Oder, and at Helmstadt, in the duchy of Brunswick. At this last-mentioned university he built, at his own expence, a chemical laboratory, and laid out a botanical garden; and, as subjects for dissection were not easily found, he made many drawings of the muscles, &c. coloured after nature, for the use of his pupils. In 1630 he left Helmstadt, on being appointed first physician to the king of Denmark, Christiern IV. and died in his majesty’s service in 1636. His works, which are very numerous, are on subjects of medicine, politics, and jurisprudence. The principal are, 1. “Observationes | anatomica?,” Francfort, 1610, 4to; Helmstadt, 1618, 4to. This last edition contains his “Disquisitiones de partus termims,” which was also printed separately, Francfort, 1642, 12mo. 2. “Disputatio de lue venerea,” Oppenheim, 1610, 4to. 3. “De observationibus quibusdam anatomicis epistola,” printed with Gregory Horstius’s Medical Observations, 1628, 4to. 4. “De Auctoritate Principum in Populum semper inviolabili,” Francfort, 1612, 4to. 5. “De jure Majestatis,1635, 4to. 6. “De subjectione et exemptione Clericorum,1612, 4to. 7. “Lectiones politicac,” Francfort, 1615, 4to. These political writings seem to have been published with a view to counteract the opinions of Althusius (See Althusius), who wrote in favour of the sovereignty of the people. Arnisoeus contended for their allegiance. Boeclerus and Grotius speak with respect of his political sentiments. 1

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Gen. Dict. —Moreri. Biog. Universelle. Mamret and —Haller.