1398 



Yendell — Youiig. 



describing an ellipse in Japanese native math., 

 4 S. (V, 15). — A theorem on surface, 3 S. — 

 The gauche polygen circumscribed about a qua- 

 dric, 6 S. (8, 15). — Solut. of a certain kind of 

 indeterminate equats. in Japanese math., 8 S. 

 (Japan.) (9, 16). — A characteristic property of 

 the circle & the sphere, 2 & 3 S. (10 & 11, 

 16 & 17). — Issei Satö's Daen-Sessyo, 7 S. 

 (Japan.) (12, 17). — The mean centre of points 

 on a algebraic curve, 10 S. — The Dajutu or 

 the arithmetic series of higher Orders as studied 

 by wasanists, 20 S. (14, 18). — Steiner's pro- 

 blem of closure, 4 S. (15, 19). — Some meth. 

 of construct. in elementary geometry, 9 S. 

 (16, 19). — Some meth. of construct. in ele- 

 mentary geometry of 3 dimens., 6 S. (17, 20). 

 Tohoku Univ. Sc. Rep.: Some properties of 

 simply closed convex curves & surfaces, 14 S. 

 (4, 1915). 



Yendell, Paul S.; Astronom, Dor- 

 chester, Mass. ; f 1918, Febr. 6. 



Boston, Astron. Journ.: Sun-spot observat., 

 march to oct. 1888, 2 S. — Observat. of short- 

 period variables in Sagittarius, 2 S. — The 

 knowledge of the inequalities in the periods 

 of the variable stars, 12 S. — The Clements & 

 light-variat. of X Cygni, 4 S. (8, 89). — Ob- 

 served maxima & minima of var. st. in 1888 — 90, 

 8 S. (8, 9 & 10, 89, 90 & 91). — Some obseived 

 max. & min. of long-per var.. l & 1 S. (9, 90). 



— Observat. of var. of the Algol-type, 4 S. — 

 The var. W Virginis, IS. — Sun-spot observat. 

 febr. to april 1890, 3 S. (9 & 10, 90 & 91). — 

 Observed max. & min. of short-per. var. in 

 Sagittarius, 4 S. (9 & 10). — Some observ. min. 

 of Y Cygni, 2 S. (9, 90). — Observat. of Paui's 

 Algol-type var. S Antliae, 2 S. — Observat. of 

 var. st. of the Algol-type, 4 S. — Var. star 

 S Monocerotis, 1 S. (10, 91). — Core's new 

 variable in Hercules, 2 S. — Elements of 

 Y Cygni, 2 S. — Light -variats. of X Cygni, 2 S. 



— Observ. max. & min. of var. st., 1890 — 91. 

 1 S. (10, 91). — Observ. of var. of the Algol- 

 type, 1890—91, 5 S. — Observ. of var. st., 

 189], 1 & 2 S. — Observ. max. & min. of 

 short-per. var. in Sagittarius, w. the note on 

 the elements of Y Sagittarii, 2 S. — New var. 

 in Vuipecula, IS. — Observat. of the var. st. 

 U Geminorum, 1891—92, 1 S. — 2 new var. 

 in Cepheus, IS. — Observ. of the new star in 

 Auriga, 1 S. — Min. of Y Cygni & A Tauri, 



1 S. (11, 92). — Some observ. min. of Y Cygni, 



3 S. — Variability of DM. 33» 470, 1 S. — 

 Observ. of short-per. var., made in 1891, 2 S. 

 ^— Observ. of var. stars of the Algol-type, 

 1891—92, 7 S. — Observ. of var. st., 1891—92, 



2 S. — The elements of some of the more recent- 

 ly discovered var., 4 S. — Observ. of stars re- 

 cently announced to be var., 4 S. — Observ. 

 max. of long-per. var., w. a correct. to the pub- 

 lished elements of X Herculis, 1 S. — New var. 

 in Cygnus, 1 S. (13, 93). — Max. & Min. of 

 var. St., observ. in 1892 — 95, 13 S. — Observ. fr. 

 1888 to 93, of stars suspected of variability, 



4 S. — The elements & light-variat. of 6981 U 

 Aquilae, 4 S. — Observ. of var. st. of the Algol- 

 type, 1892—93, 6 S. — Observ. of suspected 

 var., 4 S. — Variability of (1805) - Orionis, & 

 4703038 & (8116)-Cephei, 2 S. — Observ. min. 

 of Y Cygni, 1893, 2 S. (13, 94). — Max. & min. 

 of short-per. var. observed m 1893, 2 S. — 

 Observ. of 7437 X Cygni for the year 1893, w. 

 a note on (1800) Cephei, 2 S. — Observ. of var. 

 8t. of long per., 1893—94, 2 S. — Observ. of the 

 var. star ß Lyrae, 2 S. — Observ. of suspected 

 var., 4 S. — Light-variat. of 7149 S Sagittae, 



6 S. — Observ. max. & min. of var. st., 2 S. — 

 Observ. max. of long-per. var., w. note on a 

 suspected new var., 2 S. — Observ. of suspected 

 var., IS. — New. var. of short-per., IS. — 

 Var. star 103 T Andromedae, 3 S. (14, 95). — 

 Ephemeris of variables of the Algol-type, 2 S. 

 — Observ. of lone-per. var., 2 S. — Var. st. 

 7247 RX Cygni &''8116 W Cephei, 2 S. — Ob- 

 serv. max. & min. of long-per. var., 1894 — 95, 

 IS. — Observ. of var. st. of short per. during 

 the year 1894, 2 S. — Observ. of suspected 

 var. 1893—95, 4 S. — Light-curve of 103 T 

 Andromedae, 8 S. — Observ. of var. stars of 

 the Algol-type, 1893—95, 5 S. — Observ. max. 

 & min. of var. st., 2 S. — New var. 8598 U 

 Pegasi, 1 S. (15, 95). — Observ. of long-period 

 var., 1 & 1 S. — Observ. of the Algol-type star 

 6442 Z Herculis, 2 S. — Observ. mm. of 7488 Y 

 Cygni, 2 S. — Observ. max. & min. of 8598 U 

 Pegasi, 1 S. — Observ. max. & min. of var. st., 

 1 S. — Var. star 6442 Z Herculis, 2 S. — Observ. 

 of var. St., 1895—96, 3 S. (16, 96). — Sawyer's 

 new var. in Gemini, IS. — Variability of DM. 

 2702772 & 404332, 1 S. — Max. & min. of 

 short-period var., 1895 — 96, 2 S. — Observ. max. 

 & min. of var. st., 1 & 1 S. (17, 97). — Observ. 

 of var. of long per., IS. — Obs. of long pe •. var., 

 1 S. (18, 98). — 2 var. st. of short per. (U Vulpe- 

 culae & SU Cygni), 2 S. (20, 1900). 



Yoneyama, Kunizö; Math., Univ., 

 Kyoto, Japan. 



Kyoto, Univ. Mem.: The concept. of a curve, 

 a surf. & a solid, 10 S. (5, 1912/13). 



Tohoku, Math. Journ.: 2 svstems of Car- 

 tesian geom., 16 S. (4, 1913/14). — Theory of 

 continuous set of points, 116 & 125 S. (12 & 

 13, 17 & 18). — Sets of independant postulates 

 concerning equality & inequalitj' (theory of 

 3 undefined relats.), 113 S. (14, 18). — A certain 

 class of geometrical figures, 28 S. (16, 19). — 

 Continuous set of points, 53 & 51 S. (18, 20). 



IV Young, Alfred, M. A. 1898 Cam- 

 bridge; seit 1901 Lektor, Math., Selwvn- 

 ColL, Cambridge, Engld.; * 1873, April 

 16, Farnworth, Lancashire. 



Cambridge, Phil. Soc. Proc: Relats. among 



perpetuants, 8 S. (20, 1908). 



London, Math. Soc. Proc: Covariant types 

 of binary n-ics, 7 S. (1, 1904). — Perpetuant 

 syzygies, (m. P. W. Wood), 45 S. (2, 05). — 

 Cert. classes of syzygies, 21 S. (3, 05). — Binary 

 forms, 55 S. (13, 14). — The electromagnetic 

 properties of coils of cert. forms, 11 S. (18, 19). 



London, Boy. Soc. Proc: The maximum Or- 

 der of an irreducible covariant of a System 

 of binary forms, 2 S. (72, 1904). 



Young, Archer Everett, Ph. D. 1903 

 Princeton; stud. Middletown & Prince- 

 ton; 1898—1901 Instr., Shadyside Acad., 

 Pittsburgh, 03—08 Prof., Math., Purduc- 

 Univ., Lafayette, Ind., seit 08 Miami- 

 Univ., Oxford, 0.; * 1873, März 12, 

 Haddam Neck, Conn. (Who's who in 

 Am.) 



Practical mathematics, 1. year, 132 S., 2, year, 

 176 S., London 1913 & 15. 



Amer. Journ. of Math.: The problem of the 

 spherical representat. & the characteristic equa- 

 tions of certain classes of surfaces, 15 S. (32, 

 1910). — Certain orthogonal Systems of lines 

 & the problem of determining surfaces referred 



