Letters of Hermann von Helmholtz to his wife, 1847-1859 /
Helmholtz, Hermann von, 1821-1894.
Letters of Hermann von Helmholtz to his wife, 1847-1859 / edited by Richard L. Kremer. - Stuttgart : Franz Steiner, 1990. - XXIII, 210 p. : ill. ; 23 cm.
Text in German; introductory matter and notes in English. Based on mss. housed in the Houghton Library at Harvard. "Biography of Olga (née von Velten) and Hermann Helmholtz" / by Betty Johannes (née von Velten), circa 1902: p. [193]-201.
3515055835 (Deut. Bibl.)
Letters of Hermann von Helmholtz to his wife, 1847-1859 / edited by Richard L. Kremer. - Stuttgart : Franz Steiner, 1990. - XXIII, 210 p. : ill. ; 23 cm.
Text in German; introductory matter and notes in English. Based on mss. housed in the Houghton Library at Harvard. "Biography of Olga (née von Velten) and Hermann Helmholtz" / by Betty Johannes (née von Velten), circa 1902: p. [193]-201.
3515055835 (Deut. Bibl.)