LACROIX

lacroix, antoine francois alfred (1863- ), french mineralogist and geologist, was born at macon, saone et loire, on the 4th of february 1863. he took the degree of d. es sc. in paris, 1889. in 1893 he was appointed professor of mineralogy at the _jardin des plantes_, paris, and in 1896 director of the mineralogical laboratory in the _ecole des hautes etudes_. he paid especial attention to minerals connected with volcanic phenomena and igneous rocks, to the effects of metamorphism, and to mineral veins, in various parts of the world, notably in the pyrenees. in his numerous contributions to scientific journals he dealt with the mineralogy and petrology of madagascar, and published an elaborate and exhaustive volume on the eruptions in martinique, _la montagne pelee et ses eruptions_ (1904). he also issued an important work entitled _mineralogie de la france et de ses colonies_ (1893-1898), and other works in conjunction with a. michel levy. he was elected member of the academie des sciences in 1904.