You are currently logged out. Please sign in to download the issue PDF. The city which Was buried by Vesuvius has been excavated for two centuries. Two thirds of its ...

You are currently logged out. Please sign in to download the issue PDF. The use of such an instrument as a “lie detector” raises two types of question: scientific ...

You are currently logged out. Please sign in to download the issue PDF. In 1945 there were 411,600 cases in Italy; in the first half of 1951 there were 392. This ...

You are currently logged out. Please sign in to download the issue PDF. Some $16 million in funds over three years and a mass of new statistics showing the need for ...

You are currently logged out. Please sign in to download the issue PDF. Sometimes called Urartu, it was a powerful nation of the region around Mount Ararat in 800 B.C ...

You are currently logged out. Please sign in to download the issue PDF. Although first identified as an element more than 150 years ago, boron has only recently come ...

You are currently logged out. Please sign in to download the issue PDF. It is widely thought to have been a narrow neck of land over which man first came to America ...

You are currently logged out. Please sign in to download the issue PDF. There is little likelihood that the core of the earth will ever be examined at first hand, but ...

You are currently logged out. Please sign in to download the issue PDF. What are the beliefs, desires and problems of Americans of high-school age? The answer is ...

You are currently logged out. Please sign in to download the issue PDF. In which a system is proposed that would carry passengers from Boston to Washington in at ...

You are currently logged out. Please sign in to download the issue PDF. At Operating Speeds, the First Locomotive In America to be Driven by a Steam Turbine Geared ...

You are currently logged out. Please sign in to download the issue PDF. In numbers that appear in tables of constants, lists of street addresses and similar ...