John Hancock, prominent colonial statesman and first to sign the Declaration of Independence
American troops bombarding the city of Vera Cruz during the Mexican-American war.
Jefferson Davis, a senator from Mississippi who was elected president of the Confederate States of America.…
The great low plain of North America lies between the Atlantic system on the east and the Pacific system…
The Amazon River is the largest, most voluminous river on earth, having a greater total flow than the…
Lake George, also known as Queen of American Lakes, is a long narrow lake at the southeast…
When the glacier extends into the sea, the base is undermined by the warmer waters of the ocean, and…
If a magnetized bar or needle be suspended at its centre of gravity so as to move freely in a horizontal…
Pines are native to most of the Northern Hemisphere. In North America, they range from Arctic south…
A native of America, is extensively cultivated from the southern part of Chili to high latitudes in…
Thought to be native to Southern Asia. They are extensively cultivated throughout the tropical zones,…
Tea consists of the dried leaves of a number of evergreen shrubs, natives of China or thereabouts. Tea…
This sculpture is a Bronze-relief by Ghiberti. It is of a man on his knees in the presence of Jesus.…
Boreas was the Greek god of the cold north wind and the bringer of winter. His name meant "North Wind"…
A coniferous tree native to the northern districts of the North Island of New Zealand and is the bigest…
"The Schipperke is a small tailless dog, originally bred in Belgium and only later introduced to North…
"Right hand rule for polarity of a solenoid: If the solenoid be grasped in the right hand, so that the…
Figure showing magnetic lines of force from a magnet, as well as both north and south poles.
"If a magnet is cut or broken into two or more pieces, each piece becomes a separate magnet, with north…
"A coil of wire through which an elecric current is flowing shows magnetic properties similar to those…
"Suppose a b c to represent a portion of the earth's surface a being towards the north pole, c towards…
"The instant this is done and the galvanic circle completed, the needle will deviate from its north…
"Thus, if we suppose the conducting wire be placed in a vertical situation, as shown, and p, n, the…
"The magnetic poles of the earth do notc oincide with its geographical poles and, condequently, in some…
"We have an example of resultant motion in a boat which a person attempts to row north across a river,…
Eagle ($10.00) United States coin from 1795. Obverse has a right-facing image of Liberty wearing a cap…
Eagle ($10.00) United States coin from 1838. Obverse has a left-facing image of Liberty wearing a coronet…
Double Eagle ($20.00) United States coin from 1849. Obverse has a left-facing image of Liberty wearing…
Trime (3 cents) United States coin from 1851. Obverse has the Union shield lying on top of a six-pointed…
Half Dime (5 cents) United States coin from 1837. Obverse has right-facing Liberty seated beside a shield…
Fifth Dollar (20 cents) United States Coin from 1857. Obverse has the image of Liberty beside a shield…
Quarter (25 cents) United States coin from 1796. Obverse has the image of a right-facing Liberty with…
Quarter (25 cents) United States coin from 1853. Obverse has the image of a Liberty seated beside a…
Half Dollar (50 cents) United States coin from 1794. Obverse has the head of Liberty right-facing with…
Half Dollar (50 cents) United States coin from 1853. Obverse has the image of a Liberty seated beside…
Half Dollar (50 cents) United States coin from 1892. Obverse has the head of Liberty right-facing a…
Half Dollar (50 cents) United States coin from 1892. Obverse has the head of Columbus right-facing with…
Half Pence (1/2 pence) Obverse has the image of an elephant. Obverse has a right-facing image of George…
Miscellaneous coin (unknown) Obverse left-facing image of King George surrounded by the inscription…
Dollar ($1.00) Obverse sun over dial surrounded by the inscription - CONTINENTAL CURRENCY 1776. Reverse…
Washington Cent (1 cent) US coin from 1783. Obverse has an image of a left-facing George Washington…
Half Cent (1/2 cent) United States coin from 1793. Obverse has a left-facing profile of Liberty with…
Half Cent (1/2 cent) United States coin from 1794. Obverse has a right-facing profile of Liberty with…
Half Cent (1/2 cent) United States coin from 1800. Obverse has a right-facing profile of Liberty with…
Half Cent (1/2 cent) United States coin from 1809. Obverse has a left-facing profile of Liberty surrounded…
Cent (1 cent) United States coin from 1793. Obverse has a right-facing Liberty with LIBERTY above and…
Cent (1 cent) United States coin from 1856. Obverse has a left-flying eagle and is inscribed - UNITED…
Cent (1 cent) United States coin from 1859. Obverse has a left-facing Indian head and is inscribed -…