Blackfeet Indians in camp on St. Mary Lake.]

The American Indian is described as of haughty demeanor, taciturn and

stoical; cunning, brave and often ferocious in war; his temperament

poetic and imaginative, and his simple eloquence of great dignity and

beauty. They have a general belief in Manitous, or spiritual beings, one

of them being spoken of as the Great Spirit. They believe in the

transmigration of the soul into other men and into animals, and in

demons, witchcraft and magic. They believe in life after death, where

the spirit is surrounded with the pleasures of the “happy hunting

grounds.” They adopt a “totem” or symbol of the family and this is

generally some animal, the turtle, bear and wolf being favorites.

The number of Indians in the United States at the taking of the Federal

Census in 1910, was 265,683; and there are about 130,000 in the British

possessions, 1,500,000 in Central America and 4,000,000 in Mexico. In

all North America there are somewhere about 6,000,000 and there are

probably 10,000,000 more in South America, many of them being more or

less civilized.

How does the Beach Get Its Sand?

Most of the sands which we find on the beaches and in other places are

the ruins of rocks which have come apart, usually as the result of the

action of water. A large part of the ocean bottom is made up of

“sandstone” and the continual washing of the water over this causes

particles to break away and float off, whereupon they are swept up upon

the beaches by the waves.

Sands differ in color according to the rocks from which they are

derived. In addition to the sands on the beaches, they occur very

abundantly in many inland locations, which were formerly sea bottoms,

and very extensively in the great deserts of the world.

Valuable metallic ores, such as those of gold, platinum, tin, copper and

iron, often occur in the form of sand or mixed with that substance. Pure

siliceous sands are very valuable for the manufacture of glass, for

making mortar, filters, ameliorating dense clay soils, for making molds

in founding and for many other purposes.

The silica, which is the principal ingredient of sand, as well as of

nearly all the earthy minerals, is known as “rock crystal” in its

naturally crystallized form. Colored of a delicate purple, these

crystals are what we call “amethysts.” Silica is also met with in the

“carnelian” and we find it constituting jasper, agate, cat’s-eye, onyx

and opals. In the latter it is combined with water. Many natural waters

present us with silica in a dissolved state, although it is not soluble

in pure water. The resistance offered by silica to all impressions is

exemplified in the case of “flint” which consists essentially of silica

colored with some impurity.

How did Nodding the Head Up and Down Come to Mean “Yes”?

Like a multitude of other things, the signs which we give by the

movements of our heads to indicate “yes” and “no” were copied from

animal life.

When the mother animal brought her young a choice morsel of food she

would hold it up temptingly before its mouth and the quick forward

movement of the head, with mouth open, showed the young animal’s desire

and acceptance of the offer. Even today when we make a forward movement

of our heads to indicate “yes” it is observed that the lips are usually

quite unconsciously opened a little.

In much the same manner, when the young had been well fed and were no

longer hungry, a tightly closed mouth and a shaking of the head from

side to side were resorted to, to keep the mother from putting the food

into their mouths. Our natural impulse now is to slightly clinch our

teeth when we shake our heads to mean “no.”

Why do We Call a Man “a Benedict” When He Marries?

We call men “benedicts” when they become married because that was the

name of a humorous gentleman in Shakespeare’s play, “Love’s Labor Lost,”

who was finally married to a character named “Beatrice.”

The Wonder Book of Knowledge The Marvels of Modern Industry and Invention, the Interesting Stories of Common Things, the Mysterious Processes of Nature Simply Explained · 第 23 / 162 题