![On the action of the rays of the solar spectrum on vegetable colours, and on some new photographic processes | John Frederick William HERSCHEL, Sir | First edition On the action of the rays of the solar spectrum on vegetable colours, and on some new photographic processes | John Frederick William HERSCHEL, Sir | First edition](https://www.sophiararebooks.com/pictures/4782c.jpg?v=1557749787)
On the action of the rays of the solar spectrum on vegetable colours, and on some new photographic processes | John Frederick William HERSCHEL, Sir | First edition
![John Frederick Herschel, English astronomer and scientist - Stock Image - C045/4602 - Science Photo Library John Frederick Herschel, English astronomer and scientist - Stock Image - C045/4602 - Science Photo Library](https://media.sciencephoto.com/c0/45/46/02/c0454602-400px-wm.jpg)
John Frederick Herschel, English astronomer and scientist - Stock Image - C045/4602 - Science Photo Library
![Sir John Frederick William Herschel, 1st Baronet (1792-1871), English Polymath who Invented the Blue Print, Head and Shoulders Portrait, Steel Engraving, Portrait Gallery of Eminent Men and Women of Europe and America Sir John Frederick William Herschel, 1st Baronet (1792-1871), English Polymath who Invented the Blue Print, Head and Shoulders Portrait, Steel Engraving, Portrait Gallery of Eminent Men and Women of Europe and America](https://c8.alamy.com/comp/TWH1B4/sir-john-frederick-william-herschel-1st-baronet-1792-1871-english-polymath-who-invented-the-blue-print-head-and-shoulders-portrait-steel-engraving-portrait-gallery-of-eminent-men-and-women-of-europe-and-america-by-evert-a-duyckinck-published-by-henry-j-johnson-johnson-wilson-company-new-york-1873-TWH1B4.jpg)
Sir John Frederick William Herschel, 1st Baronet (1792-1871), English Polymath who Invented the Blue Print, Head and Shoulders Portrait, Steel Engraving, Portrait Gallery of Eminent Men and Women of Europe and America
![Prussian Blue: A History of Cyanotype | Julia margaret cameron, John herschel, Julia margaret cameron photography Prussian Blue: A History of Cyanotype | Julia margaret cameron, John herschel, Julia margaret cameron photography](https://i.pinimg.com/originals/76/7c/25/767c25c952fe810d5cf267069797d258.jpg)