1610 Orbits 



motion under. Schellbach, C. H. Crelle J. 



45 (1853) 255-. 



. Bertrand, J. C. E. 77 (1873) 849-. 



. Le Pont, H. G. Teix. J. Sc. 7 (1886) 



184-. 

 . Celle.rier, C. [1888] Gen. S. Ps. Mm. 



30 (1888-90) No. 5, 71 pp. 

 . Bigler, U. Arch. Mth. Ps. 16 (1898) 



358-. 

 . Brun, F. de. Stockh. Ofv. (1899) 



107-. 

 . Lecornu, . N. A. Mth. 18 (1899) 



161-, 292. 



, equation mv n - = ^ jjl (r 2 ) - Pr cos (Pr). 



Mantel, W. N. Arch. Wisk. 17 (1890) 52-; 

 Fschr. Ps. (1890) (Ab. 1) 292-. 



, and motion of 2 particles about one 

 another. Clausius, E. Gott. Nr. (1871) 

 245-. 



, by Newtonian law. G. Camb. Mth. J. 



3 (1843) 267-. 

 , . Stader, J. F. Crelle J. 46 



(1853) 262-, 283-. 

 , . CeMrier, C. Bll. Sc. Mth. 



15 (1891) 146-. 

 , . Saint-Germain, A. de. N. A. 



Mth. 11 (1892) 89-. 



, , integration of rectangular 

 equations. Hart, H. Mess. Mth. 9 (1880) 

 131-. 



, passage in de Pontecoulant's 



"Systemedu Monde." Steichen, . Grunert 



Arch. 6 (1845) 163-. 

 , quasi-circular. Boussinesq, J. C. E. 85 



(1877) 65-. 

 , from rest, by Newtonian law. Glashan, 



J. C. Ph. Mg. 50 (1875) 20-. 

 , singular case. Gascheau, . Toul. Ac. 



Sc. Mm. 1 (1879) (Pt. 2) 115-; Par. S. Mth. 



Bll. 10 (1882) 207-. 

 , in straight line. Pagani, G. M. Quetelet 



Cor. Mth. 6 (1830) 288. 

 , (Pagani). Verhulst, P. F. 



Quetelet Cor. Mth. 7 (1832) 183-. 

 , . Geer, P. van. Arch. Neerl. 



6 (1871) 449-. 

 1 or 2. Joukovsky, N. E. Mosc. S. Nt. 



Bll. 56 (1881) (Pt. 1) 188-. 



, by Newtonian law. Poletti, G. 



[1824] Tor. Mm. Ac. 31 (1827) 153-. 



2, one centre at infinity. Plana, G. 

 Mod. Mm. S. It. 19 (1821) 138-. 



, Lagrange's solution. Cay ley, A. 

 QJ. Mth. 2 (1858) 76-. 



, by Newtonian law. Serret, J. A. 

 Liouv. J. Mth. 13 (1848) 17-. 



, . Morera, G. G. Mt. 18 



(1880) 34-. 

 , . Bonacini, C. G. Mt. 27 



(1889) 352-; 28 (1890) 44-. 

 , . Haussner, E. G. Mt. 29 



(1891) 276-, 379-. 

 , . Saltykoff,N. Fschr. Mth. 



(1900) 699. 

 , separation of variables in equations. 



Bonacini, C. G. Mt. 28 (1890) 132-. 



Central Forces 1610 



motion under several. Curtis, A. H. Mess. 



Mth. 10 (1881) 3-. 

 , equation of orbit. Desboves, A. H. 



C. E. 47 (1858) 708-. 

 paradoxes, apparent, in theory. Zeuthen, H. G. 



(xn) Ts. Mth. 4 (1880) 3-. 

 problem. Walton, W. Camb. Mth. J. 4 (1845) 



, singular solutions. Boussinesq, J. C. E. 



84 (1877) 944-. 

 repulsive, motion in straight line under, by 



Newtonian law. Lehmann, J. W. H. As. 



Nr. 45 (1857) 161-, 289-, 353-; 46 (1857) 



177-, 225-, 305- ; 47 (1858) 49-, 113-. 

 theorems. Hamilton, (Sir) W. E Ir Ac P 



3 (1847) 308-. 



in Newton's "Principia," Bk. 1. Biot, J. B. 

 J. Sav. (1852) 458-, 470, 522-. 



varying as distance. Littrow, J. J. von. [1814] 



St. Pet. Ac. Sc. Mm. 9 (1824) 77-. 

 . Wilding, E. N. Z. I. T. 3 (1870) 



(P.) 101. 

 , alone give constant periodic time. 



Lespiault, G. Bll. Sc. Mth. As. 4 (1873) 



293-. 

 , . Chevilliet, . N. 



A. Mth. 13 (1874) 97-. 

 r-3. Blanken, H. van. (vn) Amst. N. 



Ws. Ntk. Vh. 2 (1854) 52-. 

 , motion under, 2 paradoxes. Gascheau, 



. [1882] Toul. Ac. Sc. Mm. 4 (1883) (pt. 2) 



137. 

 r- 4 , motion under. Karger, E. Arch. 



Mth. Ps. 58 (1876) 225-. 



r~ n , motion under, in straight line. 

 Geer, P. van. Z. Mth. Ps. 18 (1873) 111-. 



r n , motion under. Bastia, C. M. G. 



Mt. 22 (1884) 167-. 



ar- m + pr n . Schouten, G. N. Arch. 

 Wisk. 13 (1887) 11-, 117- ; 14 (1888) 1- ; 

 Fschr. Ps. (1886) (Ab. 1) 227-; (1887) (Ab. 

 1) 222. 



velocity and acceleration under. Dainelli, U. 

 Bologna Ac. Sc. Mm. 5 (1883) 511-. 



Apsidal angle in nearly circular path. H., J. F. 

 Camb. Mth. J. 2 (1841) 62-. 



projection. Beaant, W. H. [1870] QJ. 

 Mth. 11 (1871) 38-. 



Areas, conservation. Eugenio, V. (xn) Ev. 



Sc.-Ind. 7 (1875) 52-. 

 , . Habich, E. Par. T. Nauk Sc. Pam. 



10 (*1878) Art. 2, 28 pp.; Fschr. Mth. 



(*1878) 614. 

 , . Saint-Germain, A. de. N. A. Mth. 



14 (1895) 184-. 



generated by motion of body. Haret, S. 

 [1894] Bucarest Ac. Eom. A. 17 (1894-95) 

 (Pt. Admin.) 72-. 



, law, in motion on developable surfaces. 



Hazzidakis, J. N. Crelle J. Mth. 112 (1893) 



140-. 

 Attracting centre, change of sign in passing 



through. Basse, F. G. von. Gilbert A. 23 



(1806)236-; 25(1807)222-; 26(1807)231-; 



70 (1822) 411- ; Oken Isis 21 (1828) 628-. 

 at which force is infinite, motion towards. 



Hall, A. [1873] Mess. Mth. 3 (1874) 144-. 



119 



