Notes on Contributors. Preface. Travels of Learning. Introductory Remarks; A. Simões, A. Carneiro, M.P. Diogo. A Periphery between Two Centres? Portugal in the Scientific Route from Europe to China; H. Leitão. Scientific Travels of the Greek Scholars in the Eighteenth Century; M. Patiniotis. Yirmisekiz Mehmed Çelebi's Travelogue and the Wonders that make a Scientific Centre; B. Kilinç. Emmanuel Mendes da Costa (1717-1791): A Case Study in Scientific Reputation; R. Hayward. Embodied Skills and Travelling Savants: Experimental Chemistry in Eighteenth-Century Sweden and England; B. Dolan. Constructing the Centre from the Periphery: SpanishTravellers to France at the Time of the Chemical Revolution; A. García Belmar, J.R. Bertomeu Sánchez. Under the Banner of Catalan Industry. Scientific Journeys and Technology Transfer in Nineteenth-Century Barcelona; A. Nieto-Galan. Travelling Interchanges between the Russian Empire and Western Europe: Travels of Engineers during the First Half of the Nineteenth Century; I. Gouzévitch, D. Gouzévitch. Babbage, the Analytical Engine and the Turin Academy of Sciences; M. Segala. The Role of Travels in the Internationalisation of Nineteenth-Century Portuguese Geological Science; A. Carneiro, D. Areias, V. Leitão, L. Teixeira Pinto. Discovering Switzerland: Internationalisation of Nordic Students prior to World War II; T. Myllyntaus. Accommodation to a New Centre: Albert Szent-Györgyi's Trip to the Soviet Union; G. Palló. Index.