Add spaces: Esclangonacceptedapostattheuniversityobservatorybutcontinuedtoworkonmathematicaltopicsforhisdoctorate.

Answer: Esclangon accepted a post at the university observatory but continued to work on mathematical topics for his doctorate.

Add spaces: Prof.Schaaffhausen('Anthropolog-Review,'Oct.1869,p.373)remarkson"thevestigesofhumansacrificesfoundbothinHomerandtheOldTestament."[page]183

Answer: Prof. Schaaffhausen ('Anthropolog-Review,' Oct. 1869, p. 373) remarks on "the vestiges of human sacrifices found both in Homer and the Old Testament." [page] 183

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