I just realized that last post had absolutely no old illustrations in it. I remember looking for them but not finding them last week, and right now, I can’t be arsed.
Oh well, sometimes it’s more fun to put bizarre knit blobfish in the place of a stodgy old drawing.
Joseph Vimont and Engelman - “Skull of a Hydrocephalus Child”, from Traité de Phrénologie Humaine et Comparée, 1832
John Hunter and Jan van Rymsdyk - Maxill, mandible, and teeth, 1771
The Luzon Bleeding-heart (Gallicolumba luzonica) is one of a number of species of ground dove in the genus Gallicolumba that are called “bleeding-hearts”. They get this name from a splash of vivid red colour at the centre of their white breasts. The Luzon Bleeding-heart is the species in which this feature is most pronounced, and on first sight it is hard to believe that the bird has not recently been wounded. This is also partially due to a reddish hue extending down the belly, providing the illusion of blood having run down the bird’s front.
The inimitable John Gould’s illustration of the Luzon Bleeding-Heart, ca 1840
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Ayee, quetzals! All the Central/South American birds are amazing. I love the Trogonidae.

Gould’s representations of tropical birds are some of his best, imo.
Illustrations of Natural History by Dru Drury.