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Johann Nathanael Lieberkuhn, German anatomist, 1757.

GERMANY - JUNE 10: Etching by G R S of Lieberkuhn (1711-1756). In 1738 Lieberkuhn invented a microscope for illuminating opaque objects. Its principle was based on Fahrenheit's solar microscope, and it had a small, concave, highly polished silver speculum. This enabled the sun's rays to reflect directly on the object being examined. This speculum was later named after him. Lieberkuhn described for the first time the structure and function of the glands attached to the villi, in the intestine. These became known as Lieberkuhnian glands. He also devised special microscopes which enabled fluid motion in living animals to be seen in detail, and to better understand the circulatory vessels. (Photo by SSPL/Getty Images)
GERMANY - JUNE 10: Etching by G R S of Lieberkuhn (1711-1756). In 1738 Lieberkuhn invented a microscope for illuminating opaque objects. Its principle was based on Fahrenheit's solar microscope, and it had a small, concave, highly polished silver speculum. This enabled the sun's rays to reflect directly on the object being examined. This speculum was later named after him. Lieberkuhn described for the first time the structure and function of the glands attached to the villi, in the intestine. These became known as Lieberkuhnian glands. He also devised special microscopes which enabled fluid motion in living animals to be seen in detail, and to better understand the circulatory vessels. (Photo by SSPL/Getty Images)
Johann Nathanael Lieberkuhn, German anatomist, 1757.
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Credit:
Science & Society Picture Library / Contributor
Editorial #:
90773044
Collection:
SSPL
Date created:
January 01, 1757
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Source:
SSPL
Object name:
10419526
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2530 x 3508 px (8.43 x 11.69 in) - 300 dpi - 6 MB