But even though Pierre Curie refused to take steps to change his situation it was at last improved. In 1895 the well-known physicist, Mascart, professor in the Collège de France, impressed with his ability, and with Lord Kelvin's opinion of him, insisted that Schützenberger create a new Chair of Physics at the School of Physics and Chemistry. Pierre Curie was then named professor under conditions in which his talents were duly recognized. However, nothing was done at this time to ameliorate the inadequate material conditions under which, as we have already seen, he was carrying on his personal investigations. [Footnote 3: In this very brief memoir is presented, for the first time, a theory which explains why crystals develop certain faces simultaneously, in a particular direction, and consequently why crystals possess a determined form.] [Footnote 4: _Paramagnetic_ bodies are those which are magnetized in the same manner as iron, either strongly (_ferro-magnetic_) or feebly. _Diamagnetic_ bodies are those whose very feeble magnetization is opposed to that which iron takes in the same magnetic field.] [Footnote 5: The following is the text of a letter from this distinguished savant to Pierre Curie, written during one of his visits to Paris: October, 1893. "DEAR MR. CURIE: "I am much obliged to you for your letter of Saturday and the information contained in it, which is exceedingly interesting to me. "If I call at your laboratory between 10 and 11 tomorrow morning should I find you there? There are two or three things I would like to speak to you about; and I would like also to see more of your curves representing the magnetization of iron at different temperatures. "Yours truly, "KELVIN."] CHAPTER IV MARRIAGE AND ORGANIZATION OF THE FAMILY LIFE. PERSONALITY AND CHARACTER I met Pierre Curie for the first time in the spring of the year 1894. I was then living in Paris where for three years I[6] had been studying at the Sorbonne. I had passed the examinations for the licentiate in physics, and was preparing for those in mathematics. At the same time I had begun to work in the research laboratory of Professor Lippmann. A Polish physicist whom I knew, and who was a great admirer of Pierre Curie, one day invited us together to spend the evening with himself and his wife.