CURIE PIERRE: (1859-1906) French Physicist. Nobel Prize in Physics with his wife Marie and Henri Becquerel, in 1903. A pioneer in radioactivity. An excellent A.L.S., `P. Currie´, two pages, on two separate sheets, 8vo, Paris, 1st of April 1906, on the Faculté des Sciences de Paris, 12 Rue Cuvier, printed stationery, in French. A very interesting scientific content letter, referring to radiations. On a letter bearing the printed heading ''Laboratoire de Physique Generale'', Pierre Curie states in part `My collaborator Mr. Labarde boiled the water from the bottles you had the kindness to send us. The gases we have extracted during the ebullition have been examined under radioactive point of view. They do not contain radium emanation..´ Curie further congratulates his correspondent for his clear-sightedness on a pathetic and revolting affair. And before concluding saying and in part `..I am one of those who read the articles so clear and so precise…´ Overall age wear, with edges very slightly trimmed and stain to the upper edge, not affecting the text or signature. G £4000-6000