Earth Sciences

The term "Cocoa," a corruption of "Cacao," is almost universally used in English-speaking countries to designate the seeds of the small tropical tree known to botanists as THEOBROMA CACAO, from which a great variety of preparations under the name of cocoa and chocolate for eating and drinking are made. The name "Chocolatl" is nearly the same in most European languages, and is taken from the Mexican name of the drink, "Chocolate" or "Cacahuatl."

Hydrogen, possibly the hope for earth's human civilization's insatiable thirst for energy. Hydrogen for fuel and for lift, this book is a series of US Military documents on hydrogen craft and balloons.

The high prices which coal and wood have commanded for several years back have directed attention to peat fuel; and, such is the adventurous character of American enterprise, it cannot be doubted that we shall rapidly develop and improve the machinery for producing it.

From Navajo Apprenticeship to Sacred Geometry and Dreams : In the Sioux system, the numbers one through five are called the left-hand count and each of the numbers has symbolic associations. One is the sun, two is the earth, three is plants, four is animals, five is the human being. The left-hand count is associated with the left half of the human being, which is said to be the receptive side, embracing the world of human experience. A drummer, for example, holds a hand drum with the left, or receptive, hand.

"Show me a man who makes no mistakes, and I will show you a man who has done nothing."-Liebig. In this little volume the author gives but his own personal opinions upon the subjects discussed, and although the sentiments are expressed with an assurance born of conviction, yet he claims not infallibility.

Interesting creation theory that the world was born out of a watery existence, long before dry land appeared.

It would be an interesting thing to make a careful study once a year, towards the end of the summer, of the habits and customs of thunder and lightning. Perhaps in this way we should succeed one day in determining the still mysterious nature of these elusive forces. I, for my part, have been engaged upon the task for many years past.