Fifteenth Arrondissement

CROSSWORD HERE 

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Travels in France
    Utilising the metagrammic technique which consists of passing from one word
to another by changing one letter at each stage, go from Paris to: Blois,
Cosne, Fumel, Lille, Mende, Muret, Nimes, Redon, Rouen and Tours.

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Paris and its History
I. The cafes most sought-after by Parisians throughout the 19th century
were situated on the boulevard des Italiens. They were:
    1. The café Anglais
    2. The café Hardy
    3. The café Riche
    4. The café Tortoni
But where exactly was it situated?
    A. At the corner of rue Lafitte
    B. At the corner of rue Le Peletier
    C. At the corner of rue de Marivaux
    D. At the corner of rue Taitbout

II. In the 9th arrondissement, there is a rue Bouchart-de-Saron; Raymond
Queneau lived at no. 47 and in The Flight of Icarus, so did the novelist
Surget. What was Bochart de Saron?
    1. A theologian
    2. An astronomer
    3. A mathematician
    4. A doctor