394 APPENDIX. 



tiles in conical furnaces, exactly the reverse of the custom in 

 Germany.' 



3. HUMBOLDT'S PASSPORT ON LEAVING PARIS IN 1798. Page 238. 



' We Alplionse de Sandos Roll in, 



' Chamberlain to His Majesty the King of Prussia, and Prussian 

 Minister Plenipotentiary to the French Republic, 



' Beg and require all whom it may concern to grant a free and 

 safe pass to 



'If. Frederic Alexandre de Humboldt, Counsellor in the Court of 

 Mines of H. M. the King of Prussia, born at Berlin, aged twenty-eight 

 years, height five feet four inches [five feet eight inches E nglish~], light 

 brown hair, gray eyes, large nose, rather large mouth, 1 well-formed 

 chin, open forehead, marked with the small-pox. Travelling for the 

 acquisition of knowledge, 

 proceeding to Marseilles and Algiers, 



without permitting him to be hindered or annoyed in any manner, 

 but on the contrary granting him every assistance that he may re- 

 quire. In faith of which we have given him this passport, available 

 for eighteen months, signed with our signature, and sealed with the 

 customary seal of the Royal Arms, 



' Paris, 24th Vendemiaire, year VII. (new style), 15th October, 1798. 



'DE SAXDOS ROLLIN. 



' Signature of the Bearer : 



'FREDERIC ALEXANDRE BE HUMBOLDT.' 



The passport had received no fewer than twenty-four vises before 

 Humboldt left Marseilles a proof of the perpetual annoyances to 

 which travellers in those days were subjected. The most important 

 vise interesting on account of the signature is the first on the 

 list : 



' The Minister of Foreign Affairs certifies the authenticity of the 

 signature of M. de Sandos Rollin here attached. Paris, 26th Ven- 

 demiaire, 7th year of the French Republic. 



' CH. MAUR. TALLEYRAND.' 



4. WARRANT OF ARREST AGAINST ALEXANDER VON HUMBOLDT. 



Among Humboldt' s papers was found the following letter from 

 Baron von Eschwege, the distinguished explorer of Brazil, who 

 subsequently entered the service of Portugal : 



1 On the cover in which the passport was kept, the following remark is written 

 in Humboldt's own hand : ' Grosses Maul, dicke Nase, aber mentou bien fait.' 



