caption: The image shows a black and white drawing of a group of frogs in a glass jar, surrounded by trees and other objects. At the bottom of the image, there is some text which reads "Hengeler, 'The Frogs in the Glass Jar', 1894". The frogs are depicted in a whimsical and playful manner, with some of them looking up at the sky and others looking down at the ground. The trees in the background are lush and green, and the glass jar is filled with water, giving the image a tranquil and peaceful atmosphere.