Note 14 — LETTER XXIII.
Reading edition
In imitation of Galileo, Huyghens announced his discovery in this form: a a a a a a a c c c c c d e e e e e g h i i i i i i i l l l l m m n n n n n n n n n o o o o p p q r r s t t t t t u u u u u; which he afterwards recomposed into this sentence: Annulo cingitur, tenui, plano, nusquam cohærente, ad eclipticam inclinato.