LETTER XXIII.
_Halle au Blé_--Lightness of the roof of the dome--Annual consumption of bread-corn in _Paris_--Astrologers--In former times, their number in _Paris_ exceeded _30,000_--Fortune-tellers of the present day --Church of _St. Eustache_--_Tourville_, the brave opponent of Admiral _Russel_, had no epitaph--Festivals of reason described.