I N D E X 3 5 3 mendation for Edgar Meyer, 222 requests AE’s recommendation for his successor, 216 Passenger train service, discontinuation in Ger- many, 170 Patent infringment case, AEG v. Sannig & Co., 285 Pauer, Franz (1891–?), 234 Pauli, Wolfgang (1900–1958): 129, 333 AE on, 181 against field theoretic treatment of elec- tron, 236 article on relativity for Encyk- lopädie der mathematischen Wissenschaften, 227 on Weyl’s theory, 162, 178 PAW. See Prussian Academy of Sciences Perihelion motion of Mercury: 17 in Weyl’s the- ory, 129 Perrier, Albert (1883–1962), 127 Perrin, Francis (1901–1992), 134 Perrin, Jean (1870–1942): 98, 133, 320 congrat- ulates AE, 134 on effect of light on chemical reactions, 78, 134 Peters, Rudolf, on anti-Semitism in press, 324 Petzoldt, Joseph (1862–1929): 74 on rotating disk paradox, 65–66, 77–78 Pfitzner, Hans (1869–1949), 239 Philosophy: As If conference, 304–305, 331 Kant and relativity, 205, 317 of As If, 24–25, 29–30, 304–305. See also EINSTEIN, ALBERT: PHILOSOPHY Sellien, Ewald Photochemical effects, 78, 134 Physikalisch-Technische Reichsanstalt, and rep- lication of Franz Harres’s experiment, 123 Picard, Max (1888–1965), 195 Piccard, Auguste (1884–1962), 127 Pichon, Paul, gift for AE, 294 Pilatus, Pontius, 254 Planck, Emma (1888–1919), death of, 143 Planck, Max (1858–1947): 10, 40, 70, 83, 89, 112, 131, 137, 143, 149, 154, 161, 180, 186, 221, 224, 234, 239 AE on, 34, 157, 199 at- tached to Germany, AE on, 44 congratulates AE, 105 intercedes for Solvay, 128 invited to receive honorary doctorate at University of Rostock, 117 invited to stay in Schlick’s home, 116 Nobel prize to, 150, 162 on keep- ing AE in Berlin, 60–61, 87 personal trage- dies, 169, 175, AE on, 162 thought of for position at University of Zurich, 44, 51 Planck-Hoesslin, Marga, 61 Plebiscite on Upper Silesia, Versailles Treaty on, 80 Pohl, Robert (1884–1976), 177, 192 Poincaré, Henri (1854–1912): electron model of, 160 memorial volume of Acta Mathematica, 186 on geometry, 30 Pol, Balthasar van der (1889–1959), transmits news of eclipse results, 109 Poland: and postwar relief, 121 anti-Semitism, 116 Polányi, Michael (1891–1976): on rotational en- ergy of gas molecules, 268–269 on stability of diatomic molecules, 283 Political prisoners, AE’s advocacy for release of, 206 Pólya, Georg (1887–1985), 113 Popper-Lynkeus, Josef (1838–1921), 314 Popper-Lynkeus-Spende, 257 Positivism, idealistic, 24 Potsdam Observatory. See Astrophysical Obser- vatory, Potsdam Prager Tagblatt, 196 Prague, AE on his time in, 133 Prague, German University. See German Uni- versity of Prague Pringsheim, Ernst, 149 Private commission to investigate German war crimes: 23, 67–68, 138 AE joins, 74 helped by Lorentz, 33 Lorentz on, 30 members, 23 purpose, 33–34. See also Lille booklet Probability, in statistical mechanics, 176 Probability calculus, foundations of, 166 Prometheus, and popular science publications, 241 Protestant Synod of Berlin, 275, 288 Prussian Academy of Sciences, page limit for publications, 22, 26, 166. See also EINSTEIN, ALBERT: PRUSSIAN ACADEMY OF SCIENCES Prussian Ministry of Education, and Geodetic In- stitute, 112 Prussian Ministry of the Interior, and Geodetic Institute, 112 Prussian state, funding for general relativity re- search, 165 Prussian State Assembly, and German League for the Protection of Germans Outside Ger- many, 211 Publishers: Barth, 176 Gauthier-Villars, 308 Methuen, 271, 325–326, proposes English edition of AE’s popular book on relativity,