Natural Gas
In terms of energy the U. S. has more of this cheap, clean, convenient fuel than petroleum. A rapidly growing network of pipelines now bears it to almost all parts of the nation
Features
Rh and the Races of Man
The troublesome blood factor, the incidence of which varies in different parts of the world, is a means of tracing human blood relationships that have been lost in the mists of time
The Rare Earths
They are neither earths nor especially rare. Their abundance as fission products of uranium has stimulated a new interest in their possible usefulness for the laboratory and industry
Volcanoes
The awe-inspiring mountains of melted rock reflect the dynamic activity of the earth's crust. Although they have caused much death and destruction, they are also useful and could be more so...
Sumerian "Farmer's Almanac"
The recent discovery of an inscribed clay tablet at the site of an ancient city near modern Baghdad has made possible the translation of a 3,500-year-old agricultural handbook
Insects in Amber
In which the insect species that were trapped in the gum of pine trees 30 to 90 million years ago are compared with those caught in flypaper under similar conditions today
Surgical Cutting
Like the cutting of other craftsmen, it requires such tools as knives, scissors, chisels and saws. But the surgeon works under trying conditions, and nature always finishes his job
Purple Bacteria
The behavior of these colored microorganisms in the presence or absence of light is a simple means of studying the basic mechanism by which living things react to their environment
Departments
50 and 100 Years Ago: November 1951
Science and the Citizen: November 1951
- Letters
Letters to the Editors, November 1951
- Recommended
Books
- Amateur Scientist
The Amateur Astronomer
- Departments
Bibliography
