6420 Topology 



Packing of spheres. Giinther, S. Arch. Mth. 



Ps. 57 (1875) 209-. 

 . Gwyther, R. F. Manch. Lt. Ph. 



S. P. 25 (1886) 35-. 

 . Reynolds, 0. Manch. Lt. Ph. S. P. 



25 (1886) 95-. 



. Aldis, W. S. Nt. 39 (1889) 581-. 



. Greenhill, A. G. Nt. 40 (1889) 10-. 



. Liceing, G. D. Nt. 40 (1889) 55. 



Point groups, regular, theorems. Rohn, K. 



Mth. A. 53 (1900) 440-. 



pairs, intervals between, theorems. Padoa, 

 A. Bv. Mth. 6 (1896-99) 35-. 



systems, regular plane, of unlimited extent. 

 Sohncke,L.A. (vin) Crelle J. 77 (1874)47-. 



Points in closed line, position relations. 



Vailati, G. Ev. Mt. 5 (1895) 75-. 

 on line, position relations. Vailati, G. 



Ev. Mt. 5 (1895) 183-. 



in space, regular distributions. Bravais, A. 

 [1848] C. E. 27 (1848) 601- ; Par. S. Phlm. 

 PV. (1848) 69-; Par. EC. Pol. J. 33' cah. 

 (1850) 1-. 



Polyhedra, classification. Davis, E. W. J. 



H. Un. Cir. [6] (1886-87) 122. 

 .convex. Berger,A. Stockh.Ofv. (1898) 497-. 

 , Euler's equation, generalisation for 7i-fold 



space. Stringham, W. I. [1880] (xn) J. 



H. Un. Cir. [1] (1882) 35. 

 , relation on (p + l)-ply connected surface. 



Kapteyn, W. Amst. Ak. Vs. 4 (1896) 199- ; 



Fschr. Mth. (1896) 380. 

 , theorem and Cauchy's. Grunert, J. A. 



Crelle J. 2 (1827) 367. 

 , Descartes's. Halsted, G. B. A. 



Mth. 1 (1884-85) 138-. 

 , regular, elementary properties. Schoute, 



P. H. Fschr. Mth. (1891) 699-. 

 , , in 4-dimensional space. Schoute, P. H. 



Amst. Ak. Vh. (Sect. 1) 2 (1894) No. 2, 12 pp. ; 



No. 4, 17 pp. ; No. 1, 26 pp. 

 , , , bluntness. Heyl, P. R. N. Y. 



Am. Mth. S. Bll. 4 (1898) 292, 293-. 

 , and semiregular, in n-dimensional 



space. Cesdro, E. Lisb. Ac. Sc. Mm. 6 



(Pt. 2) (1887) No. 5, 75 pp. 

 Polyhedron, Kirkman's, problem connected 



with. Brunei, . Bordeaux S. Sc. Mm. 5 



(1895) xxix-. 



with trihedral summits, theorem. Tait, 

 P. G. Edinb. E. S. T. 29 (1880) 657-. 



Quincunx, application in science and weaving. 



Koturnitzky, P. [1893] Fschr. Mth. (1893 



-94) 876-. 

 Eegion of feth rank, division by n regions of 



(*-l)th rank. Pilgrim, L. [1878] Z. 



Mth. Ps. 24 (1879) 188-. 

 Eegions and aspects relative to points in a 



plane. Laisant, C. A. Par. S. Mth. Bll. 



10 (1882) 52-. 



curves which fill them, analytical repre- 

 sentation. Cesdro, E. Bll. Sc. Mth. 21 



(1897) 257-. 

 , number of, into which plane and space are 



divisible. Laisant, C. A. As. Fr. C. B. 



(1881) 71-. 

 .theory. Cahen,E. N. A. Mth. 16 (1897) 533-. 



Analytical Geometry 6430 



Eelations, elementary. Mobius, A. F. Leip. 



B. 15 (1863) 18-. 

 Eepresentetion of points in n-dimensional space, 



groups which r arbitrary points can repre- 

 sent. Schlegel, V. Arch. Mth. Ps. 10 



(1891) 283-. 

 space by triplets of points on a line. 



Hirst, T.A. L. Mth. S. P. 2 (1869) 48. 

 ruled space by a system of conies in a 



plane. Aschieri, F. Mil. I. Lomb. Ed. 12 



(1879) 265-. 

 Eing formed closed knotless ribands, surfaces 



obtained from. Simony, O. [1880] Wien Ak. 



Sb. 82 (1881) (Ab. 2) 691-. 

 , hollow flexible circular, results of dividing 



by closed cuts. Simony, O. [1882-83] Wien 



Ak. Sb. 85 (1882) (Ab. 2) 907- ; 87 (1883) 



(Ab. 2) 556-; 88 (1884) (Ab. 2) 939-. 

 Straight line, definition. Brunei, G. Bordeaux 



S. Sc. Mm. 3 (1893) xxx-. 

 System of two tetrads of circles, and other 



systems of two tetrads. Cayley, . Camb. 



Ph. S. P. 8 (1895) 54-. 

 Tait's diagram. Polignac, de. Par. S. 



Mth. Bll. 27 (1899) 142-. 

 Theorem. Klein, F. Gott. Nr. (1872) 290-. 

 , and application to theory of numbers. 



Busche, E. [1898] Hamb. Mth. Gs. Mt. 3 



(1900) 333-. 

 Three-dimensional spaces. Dyck, W. B. A. 



Ep. (1884) 648-. 

 Trigraphic fields of space. Russell, J. W. B. 



A. Ep. (1894) 578-. 

 Twists, class, figures formed by cutting. 



Schuster, J. L. Wien Ak. Sb. 97 (1889) 



(Ab. 2a) 217-. 

 , model of half-twist surface. Brown, C. 



Edinb. E. S. P. 13 (1886) 513-. 



6430 Methods of analytical geo- 

 metry. (See also 0840.) 



Hachette, J. N. P., & Monge, . Par. EC. Pol. 



J. ll e cah. (1802) 143-, 170-. 

 Fuss, N. [1808] St Pet. Ac. Sc. Mm. 4 (1813) 



221-. 



Monge, G. Par. EC. Pol. J. 8 (1809) 68-. 

 Gergonne, J. D. Gard Not. Tr. Ac. (1810) 168-. 

 Binet, J. P. M. Par. EC. Pol. J. 16 e cah. 



(1813) 280-. 

 Hachette, J. N. P. Par. EC. Pol. Cor. 3 



(1814-16) 132-. 

 Gergonne, J. D. Gergonne A. Mth. 8 (1817-18) 



156-. 

 Hube, K. (vi Adds.) Krk. Eoczn. Uniwers. 



9 (1824) 76-. 



Lloyd, H. Dubl. Ph. J. 1 (1825) 307-. 

 Pliicker, J. Crelle J. 6 (1830) 107-. 

 Conti, C. Padova N. Sag. 3 (1831) 90-. 

 Wilder, C. Silliman J. 20 (1831) 285-. 

 Bellavitis, G. Poligrafo 13 (1833) 53-. 

 Brunn, H. St Pet. Ac. Sc. Bll. 2 (1837) 275-; 



6 (1840) 305-. 

 Chelini, D. G. Arcad. 75 (1838) 80-, 279-; 



76 (1838) 3-, 257-. 

 D. Camb. Mth. J. 1 (1839) 74-. 



423 



