Such pyrites sulphur is usually contaminated with arsenic, and conse- quently is of less value than Sicilian sulphur, which is characteristically free from this impurity.
The resulting Z+R equations are not as a rule easy of application, owing to the fact that the moments and products of inertia A, B, C, F, G, H are not constants but vary in conse- 0 quence of the changing orientation of the body with respect to the co-ordinate axes.
Chatham Rock Phosphate (CRP or the Company) announces that it has advised the Environmental Protection Authority that it will remove the eastern end of application area covered by prospecting permit 55967, comprising 4,985 km2 and representing about half the total, so the area for which marine conse
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