hauntedbystorytelling:

Eduard Valenta & Josef Maria Eder :: X Ray of Angelfish and Surgeonfish (Zanclus cornutus and Acanthurus nigros), 1896 [Photogravure] / src: The Met

“Eder was the director of an institute for graphic processes and the author of an early history of photography. With the photochemist Valenta, he produced a portfolio in January 1896, less than a month after Wilhelm Conrad Röntgen published his discovery of X-rays. Eder and Valenta’s volume, from which this plate derives, demonstrated the X-ray’s magical ability to reveal the hidden structure of living things.” src: The Met   

G.C Clutton :: Painter and illustrator Ethel King colouring a mounted preserved specimen of a Queensland Groper in 1926 [Australian Museum]

In 1925 the Australian Museum was commissioned by the Fijian government to prepare fish specimens for an exhibition in The New Zealand and South Seas International Exhibition in Dunedin. The instructions that came with the fish were to have them mounted on a pedestal and painted in natural colors.

Source and more info about this painter: Australian Museum