6840 Axonometry 



Pohlke's theorem. Kilpper, C. Mth. A. 33 



(1889) 474-. 

 . Ruth, F. Wien Ak. Sb. 100 (1891) 



(Ab. 2a) 1088-. 

 . Schur, F. Crelle J. Mth. 117 (1897) 



24-. 

 Problem, fundamental. Beck, A. Crelle J. 



Mth. 106 (1890) 121-. 

 Problems, graphic solution. Deschtvanden, 



J. W. von. Ziir. Vjschr. 9 (1864) 223-. 

 Projection or shadow of a circle, solution of 2 



problems. Motta Pegado, L. P. da. Lisb. 



J. Sc. Mth. 6 (1878) 217-. 



Bilinear forms, three pairs of principal tri- 

 angles connected with. Igel, B. Mh. Mth. 

 Ps. 5 (1894) 289-. 



Centric figures, graphical properties. Reyes y 

 Prosper, V. Mth. A. 32 (1888) 157-. 



Complex elements in geometry, analysis. Klein , 

 C. F. Gott. Nr. (1872) 373-. 



Correspondence, elementary presentation of, etc. 

 Essen, E. Grunert Arch. 29 (1857) 77-. 



Drawing, compulsory laws of error. Haddon, 

 A. L. Nt. 48 (1893) 402-. 



, geometrical. Paulus, C. Grunert Arch. 

 23 (1854) 364-. 



from nature, instrument for. B., T. C. 

 Nicholson J. 10 (1805) 111-. 



, programme for systematic teaching of. 

 Gobin, A. Lyon S. Ag. A. 5 (1882) 131-. 



, solid and perspective, teaching. La Gour- 

 nerie, de. A. Cons. Arts et M6t. 10 

 (*1873) 260-. 



Figures, mutual dependence. Battaglini, G. 

 Nap. Ac. Sc. Mm. 2 (1855-57) 175-. 



, rectilinear. Olivier, L. Crelle J. 1 (1826) 

 227-. 



Forms, geometrical, of second species. Batta- 

 glini, G. G. Mt. 3 (1865) 298- ; 4 (1866) 96-, 



Harmonic axes and centres. Cassani, P. 

 (ix) Yen. Aten. At. 3 (1866) 147- ; (vn) 5 

 (1868) 207-. 



of system of straight lines and planes. 

 Cassani, P. G. Mt. 4 (1866) 128-. 



configuration 24 4 . Victor, A. [1884] Frei- 

 burg B. 8 (1882-85) 206-. 



division, generalisation. Laisant, C. A. 

 As. Fr. C. R. (1878) 135-. 



mean-centres (Poncelet). Cauchy, A. L. 

 Gergonne A. Mth. 16 (1825-26) 349-. 



pencils. Chevillard, A. J. N. A. Mth. 1 

 (1842) 312-. 



-. Euler, J. Fschr. Mth. (1891) 584. 



plane of point with reference to tetrahedron. 

 Hain, E. [1876] Arch. Mth. Ps. 60 (1877) 

 302. 



pole of points in a line. King, L. Mh. 

 Mth. Ps. 8 (1897) 361-. 



range, to find pair of points forming, with 

 2 given pairs. Grelle, F. Z. Mth. Ps. 13 

 (1868) 148-. 



ranges. Dostor, G. J. N. A. Mth. 9 (1850) 

 118- ; 10(1851)73-. 



Descriptive Geometry 6840 



Harmonic relation of two lines or points. 

 Cayley, A. Ph. Mg. 6 (1853) 105-. 



section, illustrations. Browning, H. H. 

 Edinb. Mth. S. P. 2 (1884) 6-. 



on straight line. Bohannan, R. D. A. 



Mth. 1 (1884-85) 121-. 



6-gon and 8-gon. Heger, R. Z. Mth. Ps. 

 18 (1873) 307-. 



Homographic division, imaginary. Battaglini, 



G. G. Mt. 2 (1864) 142-. 

 of 2 straight lines (de la Gournerie). 



[Schiappa] Monteiro, A. G. Teix. J. Sc. 1 



(1878) 117-. 



. Bohanntin, R. D. A. Mth. 



I (1884-85) 109-. 



figures and projective systems of planes. 

 Reye, T. Crelle J. Mth. 104 (1889) 211- ; 

 106 (1890) 30-, 315- ; 107 (1891) 162- ; 108 

 (1891) 89-. 



in space, properties. Jonquieres, E, de. 



N. A. Mth. 17 (1858) 51-. 

 , self -corresponding points. Deirulf, 



E. N. A. Mth. 17 (1878) 265-. 

 , volumes of 2. Amigues, E. N. A. Mth. 



12 (1873) 374-. 

 Homographies and rotations, correspondence. 



Cayley, A. Mth. A. 15 (1879) 238-. 

 Homography. Poudra, . N. A. Mth. 19 



(1860) 108-. 

 , double elements of homographies and their 



relation to curves of 3rd order and class. 



Weyr, E. Prag Sb. (1869) 3-. 

 , in projective systems. Broden, T. 



Ts. Mth. 6 (1889) 6-; Fschr. Mth. (1888) 



585. 



in geometry. Chasles,M. Brux. Mm. Cour. 



II (1837) 575-. 



and homology of figures in 3 dimensions. 

 Dewulf, E. Bll. Sc. Mth. As. 1 (1877) 137-. 



, Newtonian transformation applied to. 

 Lentheric, . (vi Adds.) Mntp. Ac. Sc. 

 Mm. 5 (1861-63) 205-. 



and perspective. Housel, . N. A. Mth. 

 8 (1869) 492-. 



Homologous figures, theory. Seiliger, D. 

 Kazan Un. Mm. (1894) (Pt. 4) 127-. 



tetrahedra. Hermes, O. [1857] Crelle J. 

 56 (1859) 218-. 



triangles. Muir, T. [1872] Mess. Mth. 2 

 (1873) 55-, 99-. 



, similar. Jefabek, V. Mathesis 16 



(1896) 81-. 

 in s.tudy of pentahedron. Gallucci, G. 



Nap. Rd. 38 (1899) 131-. 



, triply homologous. Aubel, H. van. 

 Mathesis 17 (1897) 53-. 



, , related to conies. Ripert, L. 

 As. Fr. C. R. (1900) (Pt. 2) 112- ; Mathesis 

 20 (1900) 226-. 



, , . Third, J. A. Mathesis 



20 (1900) 153-. 

 Homology. Cassani, P. G. Mt. 3 (1865) 



150-. 

 , centres, faisceaux, and envelopes of. 



Martin, H. Edinb. R. S. T. 24 (1867) 591-. 

 , principles, application to perspective. 



Regis, D. G. Mt. 8 (1870) 222-. 



474 



