The head of a frog, in the fourth stage of a physiognomic metamorphosis into an ideal head of Apollo. Coloured drawing by J.C. Lavater, 179-.

1 drawing : pencil, with watercolour ; image 7.8 x 6.7 cm

Bears number in Lavater's hand: 4

One in seven works in this series in the Wellcome Library

Otto Baur, Bestiarium humanum, Munich 1974, pp. 56-7

Wellcome Collection 34713i

Baur (op. cit.) suggests that the design (including 24 stages in its full version), which is a reworking of a series of 12 frontal physiognomies in the 1778 publication of the 'Fragmente', is much influenced by Petrus Camper's similar designs made in the intervening years