Paul de Vivie considers “How to choose a bicycle”. This is the third of 5 articles on the subject.
Particularly striking is his description of a 12 speed system, with développements of 1.60m to 8.04m (in gear inches: 20” to 101”). This would be a pretty decent set of touring ratios even today.
(Source gallica.bnf.fr/ Bibliothèque nationale de France)