66. William Blake, “Nurses Song” (Experience). Relief etching, 11.1 x 6.9 cm., etched 1794, color printed and finished in watercolors and pen and ink 1794. Songs of Innocence and of Experience copy E, 1789/1794, with additional washes c. 1806. Huntington Library. Detail of top left corner, electronically changing yellow ochre ink to red on computer, using Adobe Photoshop software, to make it easier to see that the yellow ochre ink lies on top of the green.