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Mercury occurs in deposits throughout the world mostly as [[cinnabar]] ([[mercuric sulfide]]) ...ration]]. It is used in lighting: electricity passed through mercury vapor in a phosphor tube produces short-wave [[ultraviolet light]] which then causes

...species in the ''[[Solanum]]'' genus, native to [[Eurasia]] and introduced in the [[Americas]] and [[Australasia]]. ...k nightshade is a fairly common herb or short-lived perennial shrub, found in many wooded areas, as well as disturbed habitats. It has a height of 30–1

| image_caption = ''Helleborus niger'', the so-called "Christmas rose", in the wild ...ange) of [[herbaceous]] [[perennial plant|perennial]] [[flowering plants]] in the family [[Ranunculaceae]], within which it gave its name to the [[tribe

...ial plant|perennial]] [[Herbaceous plant|herbaceous]] [[flowering plant]]s in the family [[Apiaceae]], native to [[Europe]] and the [[Mediterranean regio ...g and {{Convert|40|cm}} broad. The [[flower]]s are small, white, clustered in [[umbel]]s up to {{Convert|10|–|15|cm|sigfig=1}} across. When crushed, th

| image = Castor bean in distubred area.jpg | image_caption = Castor bean in disturbed area

...of the "Royal Perfume" of the [[Parthians]] in his [[Naturalis Historia]]. In [[Latin language|Latin]] the resin was technically known as ''opobalsamum'' When "balm" or "balsam" is mentioned in translations of the [[Bible]] this is probably the product that is intended

...conomies of [[Northern Europe]] and [[Colonial America]]. Its main use was in preserving wooden vessels against rot. The largest user was the [[Royal Nav [[File:Tjärdal 092.jpg|thumb|200px|Tar kiln at Trollskogen in [[Öland]], Sweden.]]

...b|right|Black powder for [[muzzleloader|muzzleloading]] rifles and pistols in FFFG granulation size. [[Quarter (United States coin)|Coin]] (diameter 24 m ...ern firearms do not use the traditional gunpowder (black powder) described in this article, but instead use [[smokeless powder]]. [[Antique]] firearms or

{{for|the ghost town in Minnesota |Manganese, Minnesota}} ...ganese is a metal with important industrial metal alloy uses, particularly in stainless steels.

...red stable. Its four stable isotopes have 82 [[proton]]s, a "magic number" in the [[nuclear shell model]] of [[atomic nuclei]]. ...ing]] has been documented from [[ancient Rome]], [[ancient Greece]], and [[ancient China]].

...rica]] which are named after people. The etymology is generally referenced in the article about the person or the place name. ...n, Maine]] and [[Appleton, Wisconsin]] – [[Samuel Appleton]] (father-in-law of [[Amos Lawrence]], founder of [[Lawrence University]])

...the hemp plant Cannabis sativa...is the most commonly abused illicit drug in the United States"[http://www.drugabuse.gov/Infofacts/marijuana.html] --> ...= http://www.idmu.co.uk/can.htm | title = Types of ''Cannabis'' Available in the United Kingdom (UK) | author = Matthew J. Atha (Independent Drug Monito

...Surgeons [[John Collins Warren]] and [[Henry Jacob Bigelow]] are included in this [[daguerrotype]] by [[Southworth & Hawes]].]] ...ained and advanced the practice of [[Medicine in medieval Islam|medicine]] in the [[Arab World]] during the middle ages, while alchemists like [[Paracels

| caption = Ice-cream or [[Gelato]] in [[Rome]], [[Italy]], August 2005 ...icial [[seasoning|flavourings]] and colourings are used in addition to (or in replacement of) the natural ingredients. This mixture is stirred slowly whi

...st of macerated oils|Macerated oils]] are made by infusing parts of plants in a base oil a process known as [[Liquid-liquid extraction|maceration]]. Vegetable oils can be classified in several ways, for example: