In the 1820s, French chemist Michel Eugene Chevreul discovered how to extract stearic acid from animal fatty acids. This lead to the development of stearin wax, which was hard, durable and burned cleanly. Stearin candles remain popular in Europe today.
http://www.candles.org/about_history.html

http://en.wikipedia.org/wiki/Color_naming
http://www.worldwidewords.org/articles/colour.htm
http://coloria.net/bonus/colornames.htm FANTASTISK färgkarta
http://people.csail.mit.edu/jaffer/Color/M.htm
http://en.wikipedia.org/wiki/Tsuga
Tsuga (pronounced /ˈ(t)suːɡə/,^[1] from Japanese: 栂 (ツガ), the name of Tsuga sieboldii) is a genus of conifers in the family Pinaceae. The common name hemlock is derived from a perceived similarity in the smell of the crushed foliage to that of the unrelated herb poison hemlock; see hemlock for other senses of the word. Unlike the herb, the species of Tsuga are not poisonous. There are between eight and ten species within the genus depending on the authority, with four occurring in North America and four to six in eastern Asia

http://en.wikipedia.org/wiki/Hemlock

http://en.wikipedia.org/wiki/Conium poison hemlock