Gradation de la tête de grenouille jusqu'au profil d'Apollon d'après les idées du célébre Lavater, Jacques-Louis Bance, between 1804 and 1810

Engraving published by charles bance and joubert fils, paris, after lavater. Broadside consisting of 24 profiles illustrating the continuous transformation of a head of a frog into that of the apollo belvedere. The idea is that the facial angle expresses the level of civilization of a living creature, from the horizontal angle of the frog's head to the vertical angle of the ideal human [1]. British muesum n° 2010,7054. 5. Date: between 1804 and 1810.