Microscoopopname van de skeletnaald van een zeekomkommer before 1899

"Microscoopopname van de skeletnaald van een zeekomkommer" is an anonymous illustration of a sea cucumber's skeletal needle. The image depicts the needle as viewed under a microscope, showcasing its intricate, star-shaped structure. Created before 1899, this scientific illustration likely served as a visual aid for research or publication. The detail of the needle's microscopic anatomy exemplifies the importance of scientific illustration in the late 19th century, providing a glimpse into the world of marine biology and the advancements in microscopy during this period.