Bilious fever died from bilious fever. Modern diagnoses for the same symptoms would include a wide range of conditions and infections. Bilious fever (Latin bilis, "bile"): Refers to fever associated with excessive bile or bilirubin in the blood stream and tissues, causing jaundice (a yellow color in the skin or sclera of the eye). The most common cause was malaria. Viral hepatitis and bacterial infections of the blood stream (septicemia) may have caused a few of the deaths reported as bilious fever. Bilious fever Bilious fever was a medical diagnosis often used for any fever that exhibited the symptom of nausea or
Hand-colouring of photographs 1839. Coloured powder was fixed on the delicate surface of the daguerreotype by the application of heat. Variations of this technique were patented in England by Richard Beard in 1842 and in France by Étienne Lecchi in 1842 and Léotard de Leuze in 1845. Later, hand-colouring was used with successive photographic innovations, from albumen and gelatin silver prints to lantern slides and transparency photography. Parallel efforts to produce coloured photographic images affected the popularity of hand-colouring. In 1842 Daniel Davis Jr. patented a method for colouring daguerreotypes through electroplating, and his work was refined by Warren Thompson the following year.