6820 



Stereometry. Tetrahedra 



Pyramid, triangular, formulae. Grunert, J. A. 



Grunert Arch. 36 (1861) 356-. 

 , , and inscribed spheres. Unferdinger, F. 



Grunert Arch. 28 (1857) 97-. 

 , , problem. Hochette, J. N. P. Quetelet 



Cor. Mth. 2 (1826) 211-. 

 , , problems. Flauti, V. Nap. At. Ac. 



1 (1819) 51-. 

 , , solution. Hachette, J. N. P. Par. EC. 



Pol. Cor. 1 (1804-08) 41-, 273-. 

 Quadrilaterals and tetrahedra, theorems, 



demonstration. Scheerer, T. Crelle J. 6 



(1830) 98-. 

 Eational tetrahedra. Schwering, K. Crelle J. 



Mth. 115 (1895) 301-. 

 Eeciprocal triangles and tetrahedra. Ferrers, 



N. M. QJ. Mth. 1 (1857) 191-. 

 Solid angles and tetrahedra. Hellwig, C. 



[1875] Arch. Mth. Ps. 58 (1876) 180-. 

 , with application of determinants. 



Dostor, G. Arch. Mth. Ps. 57 (1875) 113-. 

 Species. Hill, M. J. M. B. A. Up. (1895) 619-. 

 Spheres, circum-scribed. Brassinne, E. Toul. 



Mm. Ac. 3 (1847) 209-. 

 , , radius in terms of edges. Dostor, G. 



N. A. Mth. 13 (1874) 523-. 

 , e-scribed, radii. Unferdinger, F. Arch. 



Mth. Ps. 50 (1869) 110-. 

 , in- and circum-scribed, radii. Dostor, G. 



N. A. Mth. 12 (1873) 367-, 370-. 

 , e-scribed, radii, Format's theorem. 



Stammer, W. Arch. Mth. Ps. 50 (1869) 111-. 

 , inscription. Hermary, . Par. S. Mth. 



Bll. 7 (1879) 138-. 

 , tetrahedra always inscriptible in, theorem. 



Baudrimont, A. Bordeaux Mm. S. Sc. 3 



(cah. 2) (1865) 445-. 

 Surfaces, tetrahedral, two classes of surfaces 



analogous to. Ra/y, L. Par. S. Mth. Bll. 



24 (1896) 2-. 

 Tetrahedra bounded by similar triangles. 



Schoute, P. H. Amst. Ak. Vs. M. 6 (1889) 



462-; Fschr. Mth. (1889) 578-. 



with 6 edges touching sphere. JungJian, G. 

 Grunert Arch. 40 (1863) 447-. 



. Dostor, G. N. A. Mth. 



13 (1874) 563-. 



in- and circum-scribed to each other. 

 Mobius, A. F. Crelle J. 3 (1828) 273-. 



. Bauer, G. Munch. Ak. 



Sb. 27 (1898) 359-. 



with opposite edges equal in pairs. 

 Lemoine, E. As. Fr. C. E. (1875) 173-. 



, and solution of problem. 



Lemoine, E. N. A. Mth. 19 (1880) 133-. 

 perpendicular, theorem. Wolsten- 



holme, J. QJ. Mth. 3 (1860) 89. 

 at right angles. Lewis, T. C. 



Mess. Mth. 10 (1881) 36-. 

 . Temperley, E. [1881] 



Mess. Mtb. 11 (1882) 114-. 



related to 4 spheres meeting in point. 

 Roberts, S. L. Mth. S. P. 12 (1880-81) 

 117-. 



of same base and altitude, equivalence. 

 Gergonne, J. D. Gergonne A. Mth. 12 

 (1821-22) 362-. 



Tetrahedra of same base and altitude, equiva- 

 lence. Querret, . Gergonne A. Mth. 12 



(1821-22) 364-. 

 with sid 



es some or all of which are equal, 

 etc. August, F. Arch. Mth. Ps. 17 (1900) 65-. 

 Tetrahedron of 4 congruent triangles. Schmidt, 

 A. Z. Mth. Ps. 29 (1884) 321-. 



with 4 faces passing through 4 given lines, 

 and 3 vertices on 3 other lines, theorem by 

 Chasles, correction. Lange, E. Z. Mth. 

 Ps. 26 (1881) 98-. 



, --- , (Lange)'. Schroeter, H. E. 

 Z. Mth. Ps. 26 (1881) 270-. 



Theorem analogous to Pythagoras's. (Euc. i, 

 47.) Enestrom, G. Bb. Mth. (1898) 113-. 



Theorems. Clarke, A. E. Mathematician 3 

 (1850) 182-. 



. Heis, E. Grunert Arch. 31 (1858) 41-. 



. Staudt, G. K. C. von. N. A. Mth. 18 

 (1859) 441. 



. Marmier, G. N. A. Mth. 5 (1866) 268-. 



. Schroder, . D. Nf. Tbl. (*1879) 177. 



, two. Miiller, J. H. T. Grunert Arch. 9 



(1847) 319-. 



Transformation, continuous, application. Le- 

 moine, E. As. Fr. C. E, (1893) (Ft. 2) 146-. 



Transversals in plane triangle or tetrahedron. 

 Seipp, H. Arch. Mth. Ps. 9 (1890) 375-. 



Triangles and tetrahedra, analogies. Ferriot, 



. Gergonne A. Mth. 2 (1811-12) 133- ; Fr. 

 Cg. Sc. 24 (1857) 474-. 



--- , ; 9-point circle, and 12-point sphere. 



Prouhet, E. N. A. Mth. 2 (1863) 132-. 

 -- , theorems. Fregier, . Gergonne 



A. Mth. 7 (1816-17) 167-. 

 Twelve-point sphere and quadrics. Ripert, L. 



Mathesis 18 (1898) 218-. 

 Volume and angles in terms of edges. Unfer- 



dinger, F. Arch. Mth. Ps. 51 (1870) 353-. 



Theorem analogous to Cotterill's on polygons. 

 Clifford, W. K. [1872] L. Mth. S. P. 4 

 (1871-73) 178-. 



of Euclid generalised. Fedoroff, E. Bll. 

 Sc. Mth. 18 (1894) 59-. 



Theorems. Meyer, A. Brux. Ac. Bll. 15 



(1848) 261-. 



of Descartes, etc. Minich, S. R. Ven. At. 

 (1859-60) 939-. 



Uniaxal polyhedra of minimum surface with 

 constant volume. Hoppe, R. Arch. Mth. 

 Ps. 13 (1895) 69-. 



Polymerisation of carbon. Brunei, G. Bor- 

 deaux S. Sc. PV. (1894-95) 8-. 

 Propositions in piano, and analogues in three 



dimensions. Hearn, G. W. Mathematician 



2 (1847) 117-. 

 Quadrilaterals, analogues in space to two 



properties of. Weddle, T. Camb. and Dubl. 



Mth. J. 5 (1850) 238-. 

 and pentahedra, correspondence. Hermes, 



O. [1857] Crelle J. 56 (1859) 247-. 

 , plane and spherical, inscribed in circle. 



Gueneau d'Aumont, . Gergonne A. Mth. 



12 (1821-22) 269-. 



456 



