6810 



Planimetry ; Circles 



Circumference, descriptive, segmentary, or 



metrical properties. Monchvt, . C. E. 



105 (1887) 602-. 

 Circum-quadrilateral. Steiner, J. Crelle J. 



32 (1846) 305-. 

 Coaxal circles. Casey, J. [1860] QJ. Mth. 5 



(1862) 43-, 118-. 



. Schober,K. Mh. Mth. Ps. 5 (1894) 104-. 



, locus connected with. Holgate, T. F. 



N. Y. Am. Mth. S. Bll. 4 (1898) 63-; 5 



(1899) 135-. 



, radical axes. Quidde, A. Grunert 

 Arch. 23 (1854) 130-. 



, . Hopkins, G. H. [1865] Mess. 



Mth. 3 (1866) 122. 



, of certain circles in triangle. 

 Tucker, R. [1892] Edinb. Mth. S. P. 11 

 (1893) 57-. 



, , circle involved in extended defini- 

 tion of. Mack, L. Arch. Mth. Ps. 62 

 (1878) 405-. 



, , line parallel to. Rosters, . 

 Grunert Arch. 19 (1852) 1-. 



, systems. Lachlan, R. QJ. Mth. 26 



(1893) 129-. 



Concentric circles, two sets of three, having 

 same common difference of radii. Tail, 

 P. G. Edinb. E. S. P. 9 (1878) 533-. 



, systems, property. Brocard, H. 

 Mathesis 4 (1884) 219-. 



Condition that three circles should meet in 

 a point. Enneper, A. Z. Mth. Ps. 16 

 (1871) 257-. 



Conjugate circles. Mobius, A. F. Leip. B. 

 10 (1858) 1-. 



, groups. Cunningliam, (Lt.-Col.) A. 

 B. A. Ep. (1892) 647. 



Constant ratio circle. Rump, F. H. Grunert 



Arch. 27 (1856) 30-. 

 Contacts. Paucker, M. G. von. [1827] St 



Pet. Mm. Sav. Etr. 1 (1831) 503-. 



and intersections. Steiner, J. Crelle J. 1 

 (1826) 161-, 252-. 



. Plilcker, J. Gergonne A. Mth. 18 



(1827-28) 29-. 



of systems of circles. Larmor, A. L. Mth. 

 S. P. 23 (1892) 135-. 



Contraction caused by arranging circles of 



different diameters in rows. Kleiber, J. A. 



Fschr. Ps. (1890) (Ab. 1) 461-. 

 Coplanar circles, properties of triangle formed 



by. Lachlan, R. QJ. Mth. 21 (1886) 1-. 

 Diameter, to calculate from three contiguous 



chords. Voll, W. Oken Isis (1826) 670. 

 Division. Gauss, C. F. Par. S. Phlm. Bll. 3 



(1802) 102-. 

 . Utenhore, J. M. C. van. Amst. Vh. 4 



(1818) 92-. 

 . Valat, . Bordeaux Act. Ac. Sc. (1839) 



433-. 



. Eisenstein, G. Crelle J. 27 (1844) 269-. 

 . Rammelman-Elsevier, W. J. C. (vm) 



Amst. N. Ws. Ntk. Vh. 1 (1844) 127-. 

 . Kilpper, C. Grunert Arch. 27 (1856) 62-. 

 . Wenckebach, E. Gravenh. I. Ing. Ts. 



(1870-71) 79-. 

 . Carey, F. S. QJ. Mth. 26 (1893) 322-. 



6810 



Division into areas of given ratio and same peri- 

 meter. Gergonne, J. D. Gergonne A. Mth. 

 6 (1815-16) 57-. 



by compasses. Pfeil, L. von. Arch. Mth. 

 Ps. 41 (1864) 153-. 



. [Schiappa] Monteiro, A. G. Teix. 



J. Sc. 4 (1883) 39-. 

 , Gauss's theorems. Jung, G. G. Mt. 6 



(1868) 67-. 

 , irreducible equation. Arndt, F. Crelle J. 



56 (1859) 178-. 

 , new method. Pellet, A. E. C. E. 93 



(1881) 838-. 

 , practical. Housel, . N. A. Mth. 12 



(1853) 77-. 

 , . Tempier, . N. A. Mth. 12 (1853) 



345-; 13 (1854) 295. 

 , problem. Arndt, F. Grunert Arch. 18 



(1852) 461-. 

 , series for. Huguenin, U. Amst. Vh. 5 



(1820) 43-. 



into 5 equal parts. Barbour, L. G. Des 

 Moines Anal. 5 (1878) 180-. 



17 parts. A. B. (vi Adds.) Tilloch Ph. 



Mg. 57 (1821) 172-. 

 , etc. Gruson, J. P. Berl. Ab. 



(1812-13) (Mth.} 15-. 



66537 equal parts. Hermes, J. Gott. 

 Nr. (1894) 170-. 



Equations. Casey, J. [1878] E. S. P. 27 



(1878) 417- ; Ir. Ac. T. 26 (1879) 527-. 

 Faisceaux. Ribaucour, A. C. E. 76 (1873) 



830-. 

 Figures composed of circles, examination with 



a special system of coordinates. Crone, C. 



(xn) Ts. Mth. 6 (1876) 97-. 

 Grazing of two circles, best value of radii. 



Fontes, . Toul. Ac. Sc. Mm. 4 (1892) 



375-. 

 Groups of circles, certain. Vries, J. de. Amst. 



Ak. Vs. 6 (1898) 418-. 

 Homocyclic points and circles in collineation, 



etc. Serret, P. C. E. 123 (1896) 396-. 

 Imaginary circles. Mfibius, A. F. Leip. B. 9 



(1857) 38-. 

 Intersections. Gufflet, G. N. A. Mth. 5 (1846) 



352-. 

 Inversion, point and tangential. Coelingh, D. 



N. Arch. Wisk. 16 (1889) 116- ; Fschr. Mth. 



(1889) 614-. 

 Joachhnsthal's circle. Longchamps, G. de. 



Mathesis 9 (1889) 153-. 

 Minimum circle enclosing n given points. 



Chrystal, G. Edinb. Mth. S. P. 3 (1885) 30-. 

 Orthocentroidal circle. Prime, (Mme.) . 



Mathesis 13 (1893) 33-. 

 Orthogonal systems. Lachlan, R. Mess. Mth. 



16 (1887) 98-. 



trajectories of certain systems. Roberts, 

 R. A. Mess. Mth. 14 (1885) 134-. 



Plane system, coordinate. Schmite, P. H. 



Wien Ak. Sb. 94 (1887) (Ab. 2) 786-. 

 , and its representation in space. Thomae, 



J. Z. Mth. Ps. 29 (1884) 284-. 

 Polar system for circles. Meyer, T. Arch. 



Mth. Ps. 9 (1890) 18-, vn-. 



theorems, demonstrations. Zeuthen, H. G. 

 (xn) Ts. Mth. 6 (1882) 75-. 



VOL. 



433 



