John Emery Bucher was born near Hanover, Pa., August 17, 1872. He entered Lehigh University in 1888 and graduated in 1891. During the past three years he has been a graduate student in the Johns Hopkins University. Subjects: Chemistry, Mineralogy and Mathematics. ------------------------------------------------------------------------ TRANSCRIBER’S NOTES 1. Silently corrected obvious typographical errors and variations in spelling. 2. Retained archaic, non-standard, and uncertain spellings as printed. 3. Enclosed underlined font in _underscores_. 4. Denoted subscripts by an underscore before a series of subscripted characters enclosed in curly braces, e.g. H_{2}O.