From A Bibliography of Alexandre Dumas père by Frank Wild Reed: There is very little to state about this periodical effort of Dumas'. Apparently none of the bibliographers know it in connection with him, nor are we aware whether he actually contributed to it, or if he did, in what way. Yet he who knows our author can hardly conceive of him being part-owner of a journal without at least writing for it, and particularly in its earlier numbers.
It was founded by Dumas, Desnoyers, Dovalle and Vaillant. The first number appeared in 1827, and Dumas says it was killed by the Revolution of July (1830).
It was printed on rose tinted paper, which—again it is Dumas who is the authority for the statement—was worth a number of additional female subscribers. For this reason it was more commonly spoken of as "Le Journal Rose," than by its legitimate designation.
In his article on Louis Desnoyers, Vapereau says: "He came to Paris in 1828. There he founded, with MM. Vaillant and Cartilier, a little journal with liberal opposition tendencies which, to escape financial deposits and prosecuting magistrates, took successively the titles of 'Lutin,' 'Trilby,' 'Follet ' and 'Sylphe.' It was as editor of the 'Sylphe' that he was associated with the protest of the journalists against the ordonnances of July, 1830."
References :—
Dumas: "Preface to 'Le Capitaine Paul,' " in Charlieu's edition of 1856. It may also be read in "Le Mousquetaire" for February 28th and 29th and March 1st and 2nd, 1856. The special matter here referred to occurs in the "Fourth Phase : Transformation."
Vapereau: "Dictionnaire Universel des Contemporains," edition of 1865, article "Louis Desnoyers."