All the products of one period have something in common; the artists who illustrate the poetry of their generation are the same artists who are employed by the big financial houses. And nothing reminds me so much of the monthly parts of Notre-Dame de Paris, and of various books by Gérard de Nerval, that used to hang outside the grocer's door at Combray, than does, in its rectangular and flowery border, supported by recumbent river-gods, a 'personal share' in the Water Company.