Règle artificielle du temps – comparative analysis (draft article)

Last updated on October 5, 2021

Règle artificielle du temps was written by English horologist Henry Sully (1680-1728). It was originally published in Vienna in 1714, then in Paris in 1717. A subsequent and significant re-edition of the book was published in Paris in 1737, including considerable new additional content by Julien Le Roy (1686-1759), a one-time collaborator and lifelong friend to Sully. This notable historical horological book was translated into German, but inexplicably, never into English.

Attached below is a draft article I submitted to Antiquarian Historical Society some time ago. Reviewers deemed the article interesting, but suggested it needed streamlining and reworking before publication in Antiquarian Horology. I am presently unsure when I will get around to editing the draft article, and since it contains much information that may be of interest to horological enthusiasts interested in Henry Sully (and in watch-clockmaking practices in continental Europe – especially Paris – in the early decades of the eighteenth century), I have therefore decided to post my lengthy text here in PDF.

Interested readers can thus peruse a descriptive and historical analysis of this seminal work by Henry Sully, about whom I have written about in various posts on this site. A related article (on Henry Sully and Julien Le Roy) that I authored was published in Antiquarian Horology in June 2021 (which can also be found on this website).

My draft article contains several excerpts from the book which I translated, serving to illustrate to English readers some aspects of Henry Sully’s writing style and the way he communicated technical subjects for education of the reader. I feel these examples will be of interest to some readers, though the reviewers of the draft felt they were unnecessary. These excerpts also provide a glimpse into Sully’s approach and opinions regarding the design, construction and maintenance of horological timepieces.

I trust that this information will be of interest, and provide some enjoyment, to interested readers.

1714-1717-1737-Henry-Sully-Comparative-Analysis-2

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