Portrait of the six Gottschalk children Walter, Ursula, Freddy, Hal, Elizabeth and Kurt in garden; Hannover, Germany. Portraits Children

Front row from left to right: Walter, Ursula, and Freddy; back row from left to right: Hal, Elizabeth, and Kurt Godshaw; picture was probably taken in their backyard on Seelhorststrasse in Hannover, Germany

Portrait of Ernst Gottschalk (seated second row center) with eight unidentified soldiers; Rendsburg, Germany. Military Portraits groups

Morgen hat Reserve Ruh / Auf Wiedersehen / Beste Gruesse; postcard signer Gottschalk; addressee: L Nurzinsky, Altona-Othmarschen, Aidikes Str.

Portrait of Ralph and Joan Grahme with Ralph's sister Ilse Schuster nee Gottschalk and her husband James at restaurant "Old Vienna"; London, England.

Left to right: Ralph Grahme, Joan Grahme, Ilse Schuster nee Gottschalk, and James Schuster;

Wedding portrait of Ralph Grahme and Joan Traylan.

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Portrait of Walter Godshaw, Charlie Sloan (Karl-Hermann Solomon), and Ida, Kaete Solomon's maid; Hannover, Germany.

From left to right: Walter Gottschalk, Ida, Charlie Sloan (Karl Hermann Solomon); Ida, Kaete Solomon's maid, nursed Charlie back to health after his release from Dachau

Portrait of Henny Molling nee Meyerhof, Therese Molling and Julie Meyerhof nee Oppenheimer - three generations of women.

from left to right: Henny Molling nee Meyerhof, Therese Molling, and Julie Meyerhof nee Oppenheimer

Portrait of George Louis Wolff (Gerd Ludwig Wolff) holding a mouse in his genetics laboratory; Little Rock, Arkansas.

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Studio portrait of Fritz Gottschalk as a young man; Hannover, Germany.

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Portrait of Henny Molling nee Meyerhof, Therese Molling and Julie Meyerhof nee Oppenheimer - three generations of women.

from left to right: Henny Molling nee Meyerhof, Therese Molling, and Julie Meyerhof nee Oppenheimer

Studio portrait of Liselotte "Lotte" Stern nee Wallerstein.

Photograph probably taken shortly before her marriage to Alfred Stern in 1928.

Electron- Spin-Resonance studies of phase transitions in double propionates

Detailed ESR investigations of Mn2+ substituting for Ca2+ in Ca2Sr(C2H5COO)6, (DSP) and Ca2Pb(C2H5COO)6, (DLP) and Ca2Ba(C2H5COO)6, (DBP), in single crystals and powders, over the temperature range from 300°C to -180°C have been carried out to study the successive phase transitions in these compounds. Spectra have been analyzed in terms of axial spin Hamiltonians and the temperature dependences of the parameters studied. Across the I-II transition, new physically and chemically inequivalent sites appear indicating the disappearance of the diad axes on which the propionate groups are located, bringing out the connection between the motional states of the propionate groups and the occurrence of ferroelectricity. The II-III transition also causes chemically inequivalent sites to develop, indicating that the transitions may not be isomorphous as believed previously. Similarities and dissimilarities of the ESR spectra of DLP, DSP and DBP are discussed in relation to the phase transitions.

Painted portrait of Hendel Meyerhof nee Behrend Portraits Women

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Painted portrait of Hirsch (Zwiven Israel) Oppenheimer with his wife Johanna (Chana bat Schmuel) nee Enoch. Portraits Couples

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Painted portrait of Roeschen Dux nee Abraham Portraits Women

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Portrait of Franz Catzenstein and his little sister Ellen. Portraits Children

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