Sforza — Sharpe. 



1157 



sulfoquinones^), 4 S. (15, 14). — Antioxydants 

 & antioxygenes (m. P. Sisley), 5 S. (31, 22). 



Mit 1) P. Trawitz, 2) Gibello, ') Eardin, *) L. 

 Poizat, 5) Bloch, «) j. Paris. 

 •) auch in Paris, Soc. Chim. Bull. 



Siehe A. Lumiere. 



IV Sforza, Giuseppe; Dr. math. 1882 

 Pisa; seit 94 Prof., Math., techn. Instit., 

 Reggio Emilia; * 1858, Juni 3, Reggio, 

 Emilia. (Eig. Mitt.) 



Bollettino Mathesis: Aritmetica generale 

 & algebra element. di G. Peano, 4 S. (1905). — 

 Definiz. nominali dal numero reale assoluto, 

 6 S. (18). — L'irrazionale nella scuola, 4 S. (19). 



Bologna. Bellet, dl Matern,: Teoria delle 

 parallele dal punto di vista didattico, 8 S. 

 (1905). — Somma degli angoli di un poligono 

 piano non intrecciato, 4 S. (11). — Teoria sin- 

 tetica delle quantitä, 10 S. (15 & 16). — I nu- 

 meri reali, 22 S. (19). — Osservazioni sul M. 

 C. D., sul m. e. m. & suUa decomponibilitk 

 in fattori primi, 4 S. (20). 



Modena, Aecad. Meni.: Ricerche di esten- 

 sionimetria differenz. negli spazi metrico proiet- 

 tivi, 46 S. (8, 1909). 



Modena. Soc. dei N'at. & Mat. Attl: Volume 

 ■dei poliedri nell' ipotesi non-Euclidea, 8 S. 

 (9, 1907). — Estensionimetria ipersferia di 

 Luigi Schläfli, 7 S. (11, 09). — Determinaz. 

 neir ipotesi non-Euclidea dei volume dei te- 

 traedro normale in f unz. dei diedri, 15 S. (15, 13). 



— Irrazionale & razionale, 6 S. (17 — 18). 

 Perlodico dl Matern.: Formula fundamen- 

 tale per calcolo dei volumi poliedrici non- 

 Euclidei, 15 S. (1909). 



Torlno, Accad. Attl: Alcuni punti dell' 

 estensionimetria non-Euclidea, 9 S. (43, 1908). 



— Corpi rotondi & baricentro nella metrica 

 projett., 27 S. (44, 09). 



^ Shaler, Nathaniel S., Dr. sc. 1875 

 Cambridge, Mass.; war 88—1906 Prof., 

 •Geol., Cambridge, Mass.; * 1841, t 1906, 

 April 10, ebda. — (Nachr. v. W. Hobbs 

 4 S. m. Bildn. in Wisconsin, Acad. 

 'Trans., 15, 07.) 



Smlthson, Contrlbut. : Comparison of the 

 features of the earth & the moon, 130 S. 

 (34, 1907). 



Shapley, Harlow, Ph. D. Princeton, 

 N. J.; früher Astronom, Mt. Wilson Ob- 

 «ervat., Pasadena, California, seit 1921 

 Direktor, Harvard Coli. Observat., Cam- 

 .bridge, Mass. ; * 1885, Nov. 2, Nashville, 

 Missouri. 



Hrsg. d. Harvard Bulletins, Harvard Circulare, 

 Harvard Reprinte & Harvard Annais. 



A study of the orbits of eclipsing binaries, 

 176 S., Princeton 1915. 



Astron. Nachr.: The orbits of RZ Ophiuchi 

 & e Aurigae, treated as eclipsing binaries, 4 S. 

 — The ellipsoidal variables SZ Tauri & S Ant- 

 liae, 4 S. (194, 1913). — The galactic distribut. 

 of Stars of spectral class B, 2 S. (215, 22). 



Canada, Astron. Soc. Journ.: The existence 

 of external galaxies, 9 S. (13, 1919). 



Chicago, Astrophy». Journ.: Elements of 

 the eclipsing variables W Delphini, S Cancri, 

 SW Cygni & U Cephei, 17 S. (36, 1912). — 

 The Visual & Photographie ranges & the pro- 



visional orbits of Y Piscium & RR Draconis, 

 10 S. (37, 13). — The orbits of 87 eclipsing bi- 

 naries, 17 S. (38, 13). — Intermediate degrees 

 of darkening at the limb of stellar disks wlth 

 an applicat. to the orbit of Algol, 7 S. — The 

 spectroscopic orbit of RX Herculis determined 

 fr. 3 plates with a new Photometrie orbit & 

 absolute dimensions, 18 S. — New variables 

 in the center of Messier 3, 5 S. (40, 14). — Va- 

 riable Stars, 16 S. (41, 15). — A study of the 

 light-curve of XX Cygni^), 15 S. — The den- 

 sities of second-type stars, 12 S. (42, 15). — 

 The changes in the spectrum, period & light- 

 curve of the Cepheid variable RR LjTae, 17 S. 

 (43, 16). — The variats. in spectral type of 

 20 Cepheid variables, 19 S. (44, 16). — Studies 

 based on the colors & magnitudes in stellar 

 Clusters, I— X, 209 S. (4,5 — 19, 17—19). — 

 XIII & XIVi), 8 & 34 S. (50, 19). — XV, 13 S. 



— XVI2), 39 s (51^ 20). — XVII, 13 S. (5», 

 20). — XVIII & XIX (m. M. Ritchie & M. L. 

 Richmond), 16 & 11 S. (52 & 54, 20 & 21). — 

 The color curve & light-elements of W Ursae 

 Majoris (m. J. van der Bilt), 10 S. (46, 17). 



London, Astron. Soc. Month. Not.: Changes 

 in the period & light-curve of the Cluster va- 

 riable SW Andromedae, 5 S. (81, 1921). 



Philadelphia. Phil. Soc. Proc: Star Clusters 

 & their contribut. to knowledge of the universe, 

 9 S. (58, 1919). 



Washington, Acad. Proc: The light curve 

 of XX Cygni as a contribut. to the study of 

 Cepheid variat.^), 4 S. — Second-type stars of 

 low mean density, 3 S. (1, 1915). — On a 

 simple device for increasing the Photographie 

 power of large telescopes, 4 S. — Studies of 

 magnitudes in star Clusters, XI, 8 S. — XII*), 

 3 S. (6, 20). —XIII (m. B. W. Mayberry), 3 S. 

 (7, 21). — The problem of great stellar distances, 



3 S. (8, 22). 



Femer zahlr. Aufsätze in The Observatory, 

 Nature, Populär Astron., Publicats. of the 

 Astr. Soc. of the Pacific, Scientia, Publicats. of 

 Mt. Wilson & Harvard Observ. 



Mit ») M. Betz-Shapley, «) H. N. Davis. 



Siehe W. S. Adams, F. G. Pease, 

 H. N. Russell & F. H. Seares. 



Sharpe, Francis Robert, Dr.; Prof., 

 Math., Univ., Ithaca, N. Y. 



Amer. Journ. of Math.: The general circu- 

 lat. of the atmosph., 13 S. (32, 1910). — Finita 

 groups of plane birat. transformats. with 



8 fundament. points, 10 S. — Conics through 

 inflects. of selfproject. quartics, 8 S. (37, 15). 



Amer. Math. Soc. Bull.: Maximum value 

 of a determinant, 3 S. ,v The Lorentzian trans- 

 format. & the radiat. fr. a moving electron, 7 S. 



— Inner force of a moving electron, 5 S. (14, 

 1908). — A property of a spec. lin. Substitut. 



4 S. (17, 11). 



.\mer. Math. Soc. Trans.: The lin. transfor- 

 mats. of a quadratic form into itself, 16 S. (6, 

 1905). — An applicat. of Severi's theory of a 

 basis to the Kummer & Weddle surfaces^), 



9 S. — Birational transformats. of certain 

 quartic surfaces*), HS. (15, 14). — Types of 

 (2, 2) point correspondences betw. 2 planes^), 

 13 S. (18, 17). — Cert. types of involutorial 

 Space transformats.«), 27 S. (21, 20). 



Amer. Phys. Soc. Rev.: Mechanical forces 

 betw. moving electr. charges, 2 S. (.S5, 1912). 



.Vnn. of Math. Harvard Coli.: The topogra- 

 phv of certain curves defined by a different. 

 eqüat., 6 S. (11, 1909/10). — Quartic surfaces 

 invariant under period. transformats. (m. F. M. 



