THE LITERARY GAZETTE AND JOURNAL OF BELLES LETTRES, ARTS, SCIENCES

1839 26 de Outubro

THE LITERARY GAZETTE AND JOURNAL OF BELLES LETTRES, ARTS, SCIENCES   No. 1188   London, Saturday, october, 26, 1839 pAG.685

Improvement in the Daguerréotype.- M. Jobard, of Brussel, for taking portraits à l’héliographe: - “Paint in dead white the face of the patient; powder his hair, and fix the back of his head between two or three planks solidly attached to the back of an armchair, and wound up with screws! The colour of the flesh, not reflecting sufficiently the rays of light, would require a powerful sun, whereas a whitened face will be reproduced as well as plaster figures by diffused light.”

COMPTES RENDUS HEBDOMADAIRES DES SÉANCES DE L'ACADÉMIE DES SCIENCES

1840 2 de Novembro

COMPTES RENDUS  DES SÉANCES DE L'ACADÉMIE DES SCIENCES Juillet-Décembre T. XI Nº. 18 Pag. 713

M. Jobard adresse un paquet cacheté portant pour inscription : Reproduction des images héliographiques par les procédés photographiques. L’Académie en accepte le dépôt.