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Great Egg Harbor Scenic and Recreational River

(Encyclopedia)Great Egg Harbor Scenic and Recreational River: see National Parks and Monuments (table)national parks and monuments (table). ...

Jean Lafitte National Historical Park and Preserve

(Encyclopedia)Jean Lafitte National Historical Park and Preserve: see National Parks and Monuments (table)national parks and monuments (table). ...

Lower Delaware National Wild and Scenic River

(Encyclopedia)Lower Delaware National Wild and Scenic River: see National Parks and Monuments (table)national parks and monuments (table). ...

President Lincoln and Soldier's Home National Monument

(Encyclopedia)President Lincoln and Soldier's Home National Monument: see National Parks and Monuments (table)national parks and monuments (table). ...

stalactite and stalagmite

(Encyclopedia)stalactite stəlăgˈmīt [key], mineral forms often found in caves; sometimes collectively called dripstone. A stalactite is an icicle-shaped mass of calcite attached to the roof of a limestone caver...

Glacier Bay National Park and Preserve

(Encyclopedia)Glacier Bay National Park and Preserve, SE Alaska, near Juneau. The park (3,224,840 acres/1,305,603 hectares) and the preserve (58,406 acres/23,646 hectares) were established in 1925 as a national mon...

Periodic Table of the Elements (table)

(Encyclopedia)Periodic Table of the Elements (showing atomic number and atomic symbol; click on atomic symbol for more detailed information) Lanthanide Series(Rare Earth Elements) Actinide Series(Radioactive Rar...

combining weight

(Encyclopedia)combining weight, the proportion (by weight) in which a chemical element combines with other elements to form compounds. The determination of combining weights was a very important part of early chemi...

Katahdin Woods and Waters National Monument

(Encyclopedia)Katahdin Woods and Waters National Monument kətäˈdĭn [key], 87,500 acres (35,400 hectares), N central Maine, est. 2016. Located E of Baxter State Park (the site of Mt. Katahdin) along the East Bra...

Lake Clark National Park and Preserve

(Encyclopedia)Lake Clark National Park and Preserve, S Alaska. Located across Cook Inlet from Anchorage, the park (2,619,733 acres/1,060,621 hectares) and adjacent preserve (1,410,325 acres/570,982 hectares) featur...