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It is shown that the oxygen present as impurity in beryllium metal can be determined by means of the micro-scale vacuum fusion apparatus, by using samples of 2 to 10 mg containing as little as 0.2 per cent. of oxygen, provided that a rigorous experimental procedure is followed. This consists essentially of exact temperature control and the use of a molten-platinum bath in the graphite crucible.The factors determining the optimum conditions are discussed fully and the difficulties involved in working with beryllium are stressed. The results obtained for different types of beryllium and beryllium '' spiked " with beryllium oxide are given, and thus the degree of accuracy possible with such very small samples is shown.Hydrogen can also be determined by this method.

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Contemporary Seattle is a city with a dual personality. On one hand, a dramatic building boom is underway. Towering cranes crowd the skyline as scores of new office and apartment buildings race to accommodate the thousands of code warriors whom Amazon and other tech companies are hiring. Since the start of the twenty-first century, the city’s population has grown by 14 percent and its workforce by at least that amount. Median income is now the third highest in the nation among big cities, behind only San Jose and San Francisco.