Sanfourche — Sannia. 



1095 



19. — How to study. Illustrated through phy- 

 sics, 56 S., New York 22. 



Amer. Cheni. Soc. Journ. : The significance 

 of the periodic law, 4 S. (33, 1911). 



Amer. Phys. Soc. Rev. : On the wave-length 

 of the radiat. given off in an alternating con- 

 denser field, 3 S. (iil, 1905). — On physieal lines 

 of force in electrical theory, 6 S. (26, 06). — 

 On positive atomic charges, 6 S. — Atomic 

 charges & cohes., 4 S. (32, 11). — On charac- 

 teristic atomic charges & resultant molecular 

 charges, 6 S. — Pressure shift of spectral lines. 

 9 S. — The nature of the Volta effect, 6 & 2 S. 

 (35 & 2, 12 & 13). — The electrical nature of 

 cohes., 7 S. — Specific inductive capacity & 

 atomic charges, 11 S. (1, 13). — Atomic num- 

 bers & atomic charges, 7 S. (5, 15). — The 

 specific inductive capacity of certain metals, 

 6 S. — Temp. coefficient of contact potential, 

 2 S. (8, 16). — The nuclear charges of atoms, 

 11 S. — The relats. betw. ionizing potentials & 

 atomic charges, 1 S. (9, 17). — The format. of 

 negatively electrified rain drops, 4 S. (11, 18). 



— The specific inductive capacity of metals, 

 6 S. (12, 18). — Is the Einstein radiat. factor 

 h a constant ?, 6 S. (15, 20). — The variat. of 

 the factor h in the equat. ^/j mv^ = hv, 12 S. 

 (16, 20). — The electrostatic charges of the 

 earth & sun & their relat. to terrestrical magne- 

 tism, IS. — Diurnal variat. in terrestrial mag- 

 netism & in the electrical potential of the earth, 

 IS. — Sun Spots & terrestrial magnetic storms, 

 1 S. (17, 21). — The moons electric charge, 

 IS. — Earth currents & the suns induct., 1 S. 

 (18, 21). — The displacem. of the north magne- 

 tic pole of the earth from the north geografic 

 pole, 1 S. — A lunar diurnal variat. in earth 

 potentiel & in earth currents, 1 S. (19, 22). 



Chicago, Astrophys. Journ.: Pressure-shift 

 of spectral lines, 9 S. (35, 1912). — Convergence 

 frequency in spectral series, 8 S. (36, 12). — 

 A relat. betw. the convergence wave-lengths 

 in spectral series & the radii of their respective 

 atoms, as computed fr. Einstein's photo-elec- 

 tric equat. & by other meth., 9 S. (44, 16). — 

 The astronomical atom & the spectral series 

 of H, 12 S. (48, 18). — The He spectrum & the 

 Unit electrical charge, 7 S. (49, 19). — The or- 

 bits of 7 spectroscopic binaries, 23 S. (53, 21). 



— The Orbits of the spectroscopic binaries 1 Hy- 

 drae & 75 Cancri, 6 S. (55, 22). 



Phil. Mag.: The contact difference of po- 

 tential of distilled metals, 1 S. (29, 1915). 



Populär Astronomy: The quantum equat. in 

 the solar System, 3 S. (1921). 



Populär Science Monthly: The discovery of 

 contact electrificat., 9 S. (1913). 



Science: Atomic ionizat. & atomic charges, 

 2 S. (1913). — An experiment in killing tree 

 Scale by poisoning the sap of the tree, 1 S. (14). 



— In regard to the poisoning of trees by KCy, 

 1 S. (15). — On the natural charges of metals 

 (16). — Onareverseconcentrat. cell, 1 S. (18). — 

 An electrical effect of the aurora, 1 S. (21 ). • — 

 Earth currents & magnetic variats., 5 S. (22). 



The Scientific Monthly: Contact electrificat. 



6 the electric current, 8 S. (1915). — Ignis Fa- 

 tuus, 8 S. (19). — Some early theories regarding 

 electrical forces. — The electric emanat. theory. 



7 S. — Origin of the electrical fluid theories, 



12 S. (21). — The ether theories of electrificat., 



13 S. (22). 



Sanfourche, Andre; französ. Che- 

 miker. 



Paris, Acad. C. R.: Le point de Curie dans 

 le fer pur & 1. ferro-siliciums, 3 S. (167, 1918). 



— L'oxydat. du NOj par l'air sec, 4 S. — Le 

 cycle d'oxydat. du NOj en presence d'eau, 4 S. 

 (168, 19). — L'absorpt.d.oxydesdeN par HNO3 

 & HJ.SO4, 4 S. (172, 21). — Sur 1. reacts. entre 

 1. Oxydes gazeux de N & les soluts. alcalines, 

 4 S. (175, 22). 



Paris, Soc. Chlni. Bull.: La format. de l'acide 

 nitrique ä partir de l'oxyde azotique, 23 S. (25, 

 1919). — L'analyse du peroxyde d'azote li- 

 quide, 4 S. — Densite & indices de refract. ä 

 15", d. melanges eau-alcool-ether (m. A. M. 

 Boutin), 6 S. — L. hydrates du sulfure de Na 

 (m. A. M. Liebaut), 7 S. — L'absorpt. de l'ana- 

 lyse d. Oxydes gazeux de N, 17 S. (31, 22). 



IV Sanger, Charles R., Ph. D. Cam- 

 bridge, Mass.; war 1903—12 Prof., Che- 

 mie, Univ., Cambridge, Mass.; * 1860, 

 t 1912, Febr. 25, Cambridge, Mass. 



Boston, Amer. Acad. Proe. : Determinat. of 

 small amounts of Sb by the Berzelius-Marsh 

 process (m. J. A. Gibson), 20 S. (42, 1906)*). — 

 Quantit. determinat. of As & Sb by the 

 Guthzeit meth.i) 2), 40 S. (43 & 45, 07 & 09)*). 



— Determinat. of As in urine^), 16 S. (43, 07)*). 



— Pyrosulphuryl chloride & chlorsulphonic 

 acid«), 48 S. (47, 12)*). — Act. of SO.on SiCL«), 

 24 S. (48, 13)*). 



Mit ») O. F. Black, ') E. R. Riegel. 

 *) auch in Zeitschr. f. anorg. Chemie. 



Sannia, Gustavo; 1908 Doz., anal. 

 Geom., Univ., Turin, erst Prof. incari- 

 cat., algebr. Analysis & ration. Mechanik, 

 Univ., Cagliari, dann a. o. Prof., anal. & 

 projekt. Geom., Univ., Modena, jetzt 

 a. o. Prof., darstell. Geom., Univ., Neapel. 

 (Eig. Mitt.) 



Ann. di Matem,. Briosehl: Nuova esposiz. 

 della geometria infinitesimale delle congruenze 

 rettilinee, 44 S. (15, 1908). — Saggio di geom. 

 differenz. dei complessi di rette, 46 S. (17, 10). 



— Osservaz. sulla Reclamation de priorite del 

 Zindler, 4 S. (19, 12). — Deduz. geom. dei me- 

 todi di appross. delle radici di un' equaz., 4 S. 

 (25, 16). — Le serie di funz. sommate col me- 

 todo di Borel gener., 6 S. (26, 17). — II metodo 

 di sommazione di Eulero & la moltiplicaz. delle 

 Serie, 3 S. (27, 18). — Sülle serie di potenze 

 sommate col. met. di Borel gener., 4, 4 & 4 S. 

 (27 & 28, 18 & 19). — RisoTuz. dell' equaz. di 

 Fredholm con serie sommabili di Borel, 4 S. 

 (28, 19). — Classe derivata di una funz., 2 S. — 

 Nuovo metodo di sommaz. che ammette l'al- 

 goritmo delle serie assol. converg., 4 S. (29,20). 



Giorn. dl Matern. Battaglini: Cambiamenti 

 di variabili che conservane le trasformaz. in- 

 finitesimali nei sistemi differcnziali ordinarii, 

 13 S. (40, 1902). — Le sviluppate oblique di 

 una curva piana o storta, 10 S. (43, 05). — 

 Curve le cui tangenti sono ortogonali alle nor- 

 mali principali di una curva data, 12 S. (44, 

 06). — Sui baricentri di una curva storta omo- 

 genea, 16 S. (45, 07). — Congruenze rettilinee 

 che possono deformarsi conserv^ando il para- 

 metro medio, 14 S. (46, 08). — Prodotto di 2 

 serie convergenti, 4 S. — Sui determinanti in- 

 finiti normali ortogonali, 10 S. (49, 11). — Un 

 met. di Laguerre per approssimare le radici 

 di un' equaz. algebrica quando esse sono tutte 

 reali, 7 S. (.53, 15). 



Matheniat. Ann.: Geom. differenz. delle con- 

 gruenze rettilinee, 8 S. (68, 1910). 



Napoll, Acoad. Rend.: Sviluppo di una funz. 

 anal, in serie sommabili Borel, 14 S. (25, 1919). 



