Disarmament,with special reference to Asia

On February 20 M. V. dc Korostovetz read a paper on Soviet Russia and her Southern Neighbours. The subject was divided into four parts: (a) The general trend of Russia's foreign policy, which, whether Imperial or Bolshevik, has differed in method rather than aim; (b) the States from Turkey to China, lying to the south of the Soviet block, with special attention to Chinese Turkestan; (c) the Ukrainian attitude to Communism; and (d) an outline of the new canals planned to make the Volga the chief waterway of Russia at the expense of the Don, and, with the refortification of the Straits, to turn the Black Sea into a mare clausum.     

The use of linear dichroism in forensic fibre examinations — Part 6. Validation and practical aspects of MSP-PPL

This paper summarizes the results of previous work on the microscopic observation of linear dichroism found in dyed fibres (polyesters, polyamides, wool, silk, cotton, viscose, acrylics and acetates) and in pigmented fibres as well as the measurements on these fibre classes using microspectrophotometry with plane polarized light (MSP-PPL). The validation of this method is discussed and a practical tool is proposed for comparing fibre traces with control fibres. The limitations and strengths of this method are also revised.