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RT @bwiedwards: I had often heard the First World War defined as the 'chemist's war'; now I have a better sense what that actually means.…
RT @bwiedwards: I had often heard the First World War defined as the 'chemist's war'; now I have a better sense what that actually means.…
RT @bwiedwards: I had often heard the First World War defined as the 'chemist's war'; now I have a better sense what that actually means.…
RT @bwiedwards: I had often heard the First World War defined as the 'chemist's war'; now I have a better sense what that actually means.…
A proposito de los gases como arma de guerra... https://t.co/dp1X8NqiDx