6840 Projective Geometry 



Systems of trilaterals and quadrilaterals. 



Folie, F. Liege S. Sc. Mm. 7 (1878) No. 3, 



109.pp. 

 Teaching, introduction to projective geometry. 



Amodeo, F. G. Mt. 34 (1896) 22-. 

 Theorem. Amodeo, F. [1879] G. Mt. 18 



(1880) 15-. 

 Theorems. Bauer, G. Crelle J. 19 (1839) 



205-. 

 of Cremona's, proofs of two. Dewulf, E. 



G. Mt. 13 (1875) 168-. 

 , introductory. Asted, A. N. Ts. Mth. 6 



(A) (1895) 1-. 

 , various. Cayley, A. Camb. Mth. J. 2 



(1841) 267-; Crelle J. 31 (1846) 213- ; 34 



(1847) 270- ; 38 (1849) 97-; 41 (1851) 66-, 



84. 

 , . Jacobi, C. G. J. Crelle J. 31 (1846) 



40-, 93-, 359-. 

 Topographical problems, solution by "one 



plane descriptive geometry." Richardson, 



J. M. Franklin I. J. 37 (1859) 148-. 

 Triangle traced by plane of projection on the 



coordinate planes, sides. Pantanelli, D. 



G. Mt. 8 (1870) 161. 

 Trilinear relationship, new constructions in 



perspective, etc. Hauck, G. Crelle J. Mth. 



95 (1883) 1-. 

 Vectors. Kotellnikov, A. Kazan S. Ps.-Mth. 



Bll. 8 (1899) (App.)\ 9 (1900) (App.) 317 + 



40 pp. ; Fschr. Mth. (1899) 501-. 



Proportional axes. Tawaststjerna, C. G. Hel- 

 singf. Acta 1 (1840) 489-. 



planes. Tawaststjerna, C. G. [1844] Hel- 

 singf. Acta 2 (1847) 777-. 



Relations, geometrical, generalisation of certain. 

 TStdssy, B. von. Mth. Termt. Ets. 18 (1900) 

 233-; Mth. Nt. B. Ung. 18 (1903) 427. 



between segments got by dividing a line in 

 3, 4, 5 ... points. Teixeira, A. J. Fschr. 

 Mth. (1892) 671. 



of 2nd degree (between planes and pencils). 

 Eeye, T. [1865] Z. Mth. Ps. 11 (1866) 

 280-. 



Representation, elementary methods, history 

 and theory. Fiedler, W. Ziir. Vjschr. 27 

 (1882) 125-. 



of planes on planes. Miihll, K. von der. 

 Crelle J. 69 (1868) 264-. 



Stenographic Projections, and other Projections 

 of the Sphere. 



(See also 8840 and Geography 83.) 



Orthogonal projection in spherical geometry. 

 Lodge, A. Mth. Gz. 1 (1900) 97-. 



Sphere, perspective. Gergonne, J. D. Ger- 

 gonne A. Mth. 7 (1816-17) 311-. 



, , conical. Ocagne, M. d\ N. A. Mth. 

 17 (1898) 44-. 



, projection on plane. Landr6, C. L. N. 



Projections of Sphere 6840 



Sphere, projective geometry. Allardice, JR. E. 



Edinb. Mth. S. P. 4 (1886) 56-. 

 Stereographic projection. Heawood, P. J. 



Mth. Gz. 1 (1900) 102-. 

 of circle, proof of Francceur's problem. 



Brocard, H. Fschr. Mth. (1892) 551. 

 , converse. Jeffery, H. M. L. Mth. S. 



P. 17 (1887) 379-. 



, equatorial, of sphere, application of 

 Peaucellier cell. Phillips, A. W. B. A. Rp. 

 (1884) 649. 



, history. Gilnther, . D. Nf. Tbl. 

 (1887) 227-. 



and theorems of Quetelet and Dandelin. 



Pelz, C. Prag Sb. (1898) (Mth.-Nt.) No. 31, 

 4pp. 



, use in geometry. Dandelin, G. P. 

 Gergonne A. Mth. 16 (1825-26) 322- ; Brux. 

 Mm. Ac. Sc. 4 (1827) 13-. 



projections of point and its inverse, relation 

 between. Tu-eedie, C. Edinb. Mth. S. P. 

 10 (1892) 46-. 



Arch. Wisk. 6 (*1880) 203-. 

 ,_ of 2/3. James, (Sir) H. (vm) R. E. 



Pp.7 (1858) 134. 



Straight lines joining vertices of triangles or of 



skew quadrilaterals, theorems. Steiner, J. 



Crelle J. 1 (1826) 38-. 

 Transformation of figures. Anger, C. T. 



Grunert Arch. 4 (1844) 281-. 

 . Lentheric, . (vi Adds.) Mntp. 



Ac. Sc. Mm. 5 (1861-63) 440-, 446-, 449. 

 metric properties of figures. Fanre, H. 



N. A. Mth. 17 (1858) 276-, 381- ; 18 (1859) 



181-, 381- ; 19 (1860) 189-. 

 plane figures, Newtonian. Lentheric, . 



Mntp. Ac. Sc. Mm. 4 (1858-60) 145-, 351-. 



Transversals. 



Ferriot, . Gergonne A. Mth. 17 (1826-27) 



141-. 

 Gamier, J. G. Quetelet Cor. Mth. 4 (1828) 



143-. 



Cousinery, . N. A. Mth. 2 (1843) 66-. 

 Killp, L. Arch. Mth. Ps. 56 (1874) 437-. 

 Cesdro, E. G. Mt. 22 (1884) 240-. 

 Candy, A. L. A. Mth. 10 (1895-96) 175- ; 11 



(1896-97) 10-. 

 Analytical problems. Bergsten, N. J. Stockh. 



Ac. Hndl. (1820) 1-. 

 Application of geometrical theorem. Bump, 



F. H. Grunert Arch. 27 (1856) 332-. 

 Carnot's theorem, application to polygons. 



Lerch, M. Prag Sb. (1882) 132-. 

 , tangents. Terquem, 0. N. A. 



Mth. 18 (1859) 347-. 

 , demonstration. Walton, W. Camb. 



and Dubl. Mth. J. 5 (1850) 92-. 

 Circle, transversals, theorems. Lefaivre, P. 



N. A. Mth. 2 (1843) 362-. 

 Complete polygons and polyhedra, tranversals. 



Vanecek, M. N. Prag Sb. (1881) 274-. 

 Metrical relations. PeliSek, M. Casopis 27 



(1898) 26-, 81-, 165- ; Fschr. Mth. (1898) 



438. 

 Parallel transversals, equal. Hain,E. [1874-77] 



Arch. Mth. Ps. 57 (1875) 441; 61 (1877) 177-. 





480 



