Pechard — v. Pechmann. 



951 



of materials (m. Todhunter), 3 Bde., Cambridge 

 1886 — 93. — Mathemat. contributs. to theory 

 ot evolut. 9 : On principle of homotyposis & its 

 relat.toheredity to variability of the individual, 

 & to that of the race. I : Homotyposis in the ve- 

 getable kingdom, London 1901. — 10: Supple- 

 ment to a memoir on skew variat. 11: On the 

 infl. of natural select. on the variability & 

 correlat. of organs. — 12: A generalised theory 

 of alternative inheritance, w. special reference 

 to Mendel's laws, 16, 66 & 34 S., London 

 Ol — 04. — 13: Theory of contingeney & its 

 relat. to associat. & normal eorrel. — 14: The- 

 ory of skew correlat. & non-linear regress. — 

 15: Mathem. theory of random migrat. (m. J. 

 Blakeman). — 16: On further meth. of deter- 

 mining correlat., London 07. — 17: Homety- 

 posis in the animal kingdom. — On the math. 

 theory of errors of judgment, m*. special re- 

 ference to the personal equat., London 02. — 

 On torsional vibr. in axles & shafting, London 

 05. — An experimental study of stresses in 

 masonry dams, London 07. — Practical theo- 

 ry of elliptic & pseudo-elliptic arches, w. spe- 

 cial reference to the ideal masonry arch., Lon- 

 don 09. — The grammar of science, I: Physi- 

 cal, 3. Aufl., 414 S., London 11. — The life, 

 letters & labours of Francis Galton, Bd. I, 

 258 S., London 14, Bd. II, 24. — Table« for 

 statisticians & biometricians, 2. Aufl., London 24. 

 Biometrika: Fr. Galton's problem, 10 S. 

 (1, 1901). — The systemating fitting of cur- 

 ves to observats. & measurem., 62 S. (1 & 2, 

 02/03). — D. Fehlergesetz & seine Verallge- 

 meinergn. durch Fechner & Pearson, 44 S. 

 (4, 05). — The generalised probable error in 

 multiple normal correlat. i), 10 S. (6, 08). — 

 New. meth. of determining correlat., when one 

 variable is given by alternative & the other 

 by multiple categories, 10 S. — The opsonic 

 index. Älathem. error & f unctional error, 54 S. 

 (8, 11). — Measurem. of the influence of Broad 

 Categories on correlat., 24 S. — The probable 

 error of a coeffic. of correlat. as found fr. a 

 fourfold table, 6 S. (9, 13). — Numerical illu- 

 strats. of the variate difference correlat. meth.^). 

 16 S. (10, 14/15). — General theory of multiple 

 contingeney w. special reference to partial con- 

 tingeney, 14 S. — The probable error of a 

 coefficientof contingeney withoutapproximat.^), 

 16 S. — On some novel properties of partial & 

 multiple correlat. coefficients in a universe of 

 manifold characteristics, 8 S. — On the ap- 

 plicat. of goodness of fit tables to test regress. 

 curves & theoretical curves used to describe 

 observational or experimental data, 23 S. — 

 On the probable error of biserial t], II S. — 

 On the distribut. of the correlat. coefficient 

 in small samples^) ') ») *), 86 S. (11, 15/17). — 

 On the product-moments of various Orders of the 

 normal correlat. surface of two variates'), 

 7 S. — Corrects. for the moment-coefficients 

 of limited ränge frequency distributs. when 

 there are finite or infinite ordinales & any slo- 

 pes at the terminals of the ränge (m. E. Pair- 

 man), 28 S. — On generalised Tchebycheff theo- 

 rems in the mathematical theory of statistics, 

 13 S. — The fundamental problem of practical 

 statistics, 16 S. — Notes on the history of 

 correlat., 21 S. (13, 20/21). — On polychoric 

 coefficients of correlat. (m. E. S. Pearson), 28 S. 

 — On the variate difference meth. (m. E. M. 

 Elderton), 30 S. (14, 22/23). 



London, Astron. Soc. Month. \ot.: On some 

 points w. regard to the light-fluctuat. of va- 

 riable Stars, 24 S. — D» Rejoinder to the H. C. 

 Plummer's criticisms, 12 S. (69, 1908/09). — 



A last Word on the correlat. of variable stars, 2 S. 

 — The mass determinat. of parallaxes (m. J. 

 Bell), 7 S. (70, 09/10). 



London, Roy. Soc. Phil. Trans.: Math, con- 

 trib. to the theory of evolut. : Influence of na- 

 tural select. on the variability of organs. 

 Alternative inherit., w. special refer. to Mendel's 

 laws, 100 S. (200 & 203, 1903 & 04). 



London, Roy. Soo. Proc: On a criterion 

 which may serve to test various theories of 

 inherit., 19 S. (73, 1904). — The improbability 

 of a random distribut. of the stars in space, 23 S. 

 (84, 10). — On the partial correlat. ratio. 7 S. 

 (91, 15). 



Phil. Mag. : A general theory of the meth. of 

 false posit., 10 S. (5, 1903). — A novel instru- 

 ment for drawing parabolas, 2 S. (7, 04). — 

 The influence of past exper. on future expectat., 

 13 S. (13, 07). — On a brief proof of the fun- 

 damental formula for testing goodness of fit 

 of frequency distributs.. & on the probable error 

 of P, 10 S. (31, 16). 



Tables of the incomplete /"-fimct., Statio- 

 nary office, 1922. 



Außerdem viele Abhdlgn. (Eugenics Labor, 

 publicats: Memoirs series, Lecture ser., Bio- 

 metrie Labor, publicats. (Draper's Co. research 

 mem.): Biometrie ser., Studies in National De- 

 teriorat., Quests. of the day & of the fray, 

 Tracts. for computors). 



Mit ») A. Lee, ») B. M. Cave, ') A. W. Young. 

 «) H. E. Soper. 



Siehe M. Seegar. 



IV Pechard, Edouard L. V., Dr. es-sc. 

 1890 Paris; Prof., Chemie, Univ., Paris; 

 * 1862, Okt. 19, La ChapeUe-sur-Avey- 

 ron, Loiret. 



Paris, Acad. C. R.: Produits de la reduct. 

 d.selsdeCuparrhydroxylamine,3 8.(136,1903). 

 Siehe L. Troost. 



Pecheux, Hector; französ. Chemiker. 

 Traite theorique & pratique d'electr. Avec no- 

 tes addit. de J. Blondin & E. Neculcea. Pre- 

 face de J. Violle. 20 -f 719 S., Paris 1904. — 

 Le pyrometre thermo-electr. pour la mesure 

 d. temp. elevees, 09. 



Paris, Acad. C. R.: L. alliages Pb-Al, 2 S. — 

 L. alliages Zn-Al, 2 S. — Une propriete d. alliages 

 Sn-Al, 1 S. — L. alliages de l'Al avec Bi & Mg, 

 2 S. (138, 1904). — Nature de la decomposit. 

 d'une solut. aqueuse de CUSO4 par qqs. alliages 

 de l'Al, 3 S. (142, 06). — Determinat., a l'aide 

 d. pyrometres thermo-electr., d. points de fus. 

 d. alliages de l'Al avec Pb & Bi, 2 S. (143, 06). 



— La thermo-electricite du Ni (infl. d. metaux 

 etrang.), 3 S. (143, 07). — La thermo-electr. 

 du Co, 1 S. (147, 08). — De l'infl. d. matieres 

 etrang. au metal, sur la thermo-electric. & la 

 resistivite de l'Al, 2 S. — D. propr. electr. d. 

 cuproaluminiuras (thermoelectr. & resist.), 2 S. 

 (148, 09). — Propr. electr. d. aciers (resist. & 

 thermoelectr.), 2 S. (149, 09). — La mctallo- 

 graphie d. syst. Se-Sb, 2 S. — Resist. & ther- 

 moelectr. du Ta, 2 S.(l.'>3, 11). — Essai de de- 

 terminat. de qqs. poids atom., 2 S. (154, 12). 



— De la thermo-electr. du tungstene, 2 S. 

 (167,18). 



Iv V. Pechmann, Freiherr Hans, 

 Dr. phil. 1875 Greifswald; war Prof., 

 allgem. Chemie, Univ., Tübingen; * 1850, 

 t 1904, April 19, Tübingen. — (Nachr. 



