Ovations On Other Sites - Ovation 19 Ovations 06Calibrated Amber chose the topics covered by Ovations On Other Sites - Ovation 19 without reflecting upon the choices others have made. And when you have finished learning all that you can and understand all that you have learned, vacationing with friends in the desert is another way to look at things in a different light. |
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The German Government feels itself obliged to point out with the greatest emphasis that a traffic in arms, estimated at many hundreds of millions, is being carried on between American firms and Germany's enemies. Germany fully comprehends that the practice of right and the toleration of wrong on the part of neutrals are matters absolutely at the discretion of neutrals, and involve no formal violation of neutrality. Germany, therefore, did not complain of any formal violation of neutrality, but the German Government, in view of complete evidence before it, cannot help pointing out that it, together with the entire public opinion of Germany, feels itself to be severely prejudiced by the fact that neutrals, in safeguarding their rights in legitimate commerce with Germany according to international law, have up to the present achieved no, or only insignificant, results, while they are making unlimited use of their right by carrying on contraband traffic with Great Britain and our other enemies. |
~Gasometric Assays.~--Gasometric methods are not much used by assayers, and, therefore, those students who wish to study them more fully than the limits of this work will permit, are recommended to consult Winkler and Lunge's text-book on the subject. The methods are without doubt capable of a more extended application. In measuring liquids, ordinary variations of temperature have but little effect, and variations of atmospheric pressure have none at all, whereas with gases it is different. Thus, 100 c.c. of an ordinary aqueous solution would, if heated from 10° C. to 20° C., expand to about 100.15 c.c. 100 c.c. of a gas similarly warmed would expand to about 103.5 c.c., and a fall of one inch in the barometer would have a very similar effect. And in measuring gases we have not only to take into account variations in volume due to changes in temperature and atmospheric pressure, but also that which is observed when a gas is measured wet and dry. Water gives off vapour at all temperatures, but the amount of vapour is larger as the temperature increases. By ignoring these considerations, errors of 3 or 4 per cent. are easily made; but, fortunately, the corrections are simple, and it is easy to construct a piece of apparatus by means of which they may be reduced to a simple calculation by the rule of three. The volume of a gas is, in practice, usually reduced to that which it would be at a temperature of 0° C., when the column of mercury in the barometer is 760 mm. high. But, although convenient, this practice is not always necessary. The only thing required is some way of checking the variations in volume, and of calculating what the corrected volume would be under certain fixed conditions. |
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