Gill (unit)

The gill (pronouncedⁱ/ˈdʒɪl/) is a unit of measurement for volume equal to a quarter of a pint. It is no longer in common use, except in regard to the volume of alcoholic spirits measures.

In Great Britain, the standard single measure of spirits in a pub was ¹⁄₆ gill (23.7 ml) in England, and ¹⁄₅ gill (28.4 ml) in Scotland; after metrication this was replaced by either 25 or 35 ml (0.176- or 0.246-gill) measures (landlords can choose which one to serve). The ¹⁄₄ gill was previously the most common measure in Scotland, and still remains as the standard measure in pubs in Ireland. In southern England, it is also called a noggin. In northern England, however, the large noggin is used, which is two gills. In some areas, a gill came to mean half a pint for both beer and milk.

In Ireland, the standard spirit measure was historically ¹⁄₄ gill. In the Republic of Ireland, it still retains this value, though it is now legally specified in metric units as 35.5 ml.

In popular culture

There are occasional references to a gill in popular culture, such as in the cumulative song "The Barley Mow". In L. Frank Baum's "The Patchwork Girl of Oz" one of the ingredients required for a magic spell is a gill of water from a dark well. In chapter 19 the obscure unit is used for humor including a pun with Jack and Jill, which also involved a well.

Gill

A gill (ⁱ/ɡɪl/) is a respiratory organ found in many aquatic organisms that extracts dissolved oxygen from water and excretes carbon dioxide. The gills of some species, such as hermit crabs, have adapted to allow respiration on land provided they are kept moist. The microscopic structure of a gill presents a large surface area to the external environment.

Many microscopic aquatic animals, and some larger but inactive ones, can absorb adequate oxygen through the entire surface of their bodies, and so can respire adequately without a gill. However, more complex or more active aquatic organisms usually require a gill or gills.

Gills usually consist of thin filaments of tissue, branches, or slender, tufted processes that have a highly folded surface to increase surface area. A high surface area is crucial to the gas exchange of aquatic organisms, as water contains only a small fraction of the dissolved oxygen that air does. A cubic meter of air contains about 250 grams of oxygen at STP. The concentration of oxygen in water is lower than air and it diffuses more slowly. In fresh water, the dissolved oxygen content is approximately 8 cm³/L compared to that of air which is 210 cm³/L. Water is 777 times more dense than air and is 100 times more viscous. Oxygen has a diffusion rate in air 10,000 times greater than in water. The use of sac-like lungs to remove oxygen from water would not be efficient enough to sustain life. Rather than using lungs, "[g]asesous exchange takes place across the surface of highly vascularised gills over which a one-way current of water is kept flowing by a specialised pumping mechanism. The density of the water prevents the gills from collapsing and lying on top of each other, which is what happens when a fish is taken out of water."

Gill, Massachusetts

Gill is a town in Franklin County, Massachusetts, United States. The population was 1,500 at the 2010 census. It is part of the Springfield, Massachusetts Metropolitan Statistical Area. The campus of Northfield Mount Hermon School is located in the Mount Hermon section of the town.

History

Prior to the arrival of English colonists, the Massachusetts portion of the Connecticut River valley was occupied by the Nipmuc, an Algonquin-speaking tribe. A site on the river near the great falls shows evidence of human habitation dating back 10,000 years or more. In the 1670s the Nipmuc had a village called Peskeompscut in that area. During King Philip's War in 1676, Captain William Turner led 150 colonists in an attack on this settlement, in which several hundred Indians (mostly women, children, and elderly) were slain. The falls came to be known as Turners Falls after Turner, who was slain in the battle. (The falls thereafter gave that name to the village of Turners Falls in neighboring Montague.)

Gill (name)

Gill may be a surname or given name, derived from a number of unrelated sources;

People with the surname Gill