Index of Names 

 {Roman figures refer to the chapters, Arabic to the articles.} 



42T 



Honein ben Ishak (?-873), in. 



56 

 Hooke (1635-1703), ix. 174, 



176; x. 207, 212 

 Horky, vi. 121 

 Horrocks (1617 ?-i64i), vm. 



156; ix. 183; x. 204 

 Hewlett, xin. 298 

 Huggins, xin. 301, 304, 311- 



313 



Hulagu Khan, in. 62 

 Humboldt, xin. 298 

 Hutton (1737-1823), x. 219 

 Huygens (1629-1695), v. 98 n ; 



vi. 123 ; vm. 154, 155, 157, 



158; ix. 170-172, 191 

 Hypatia(?-4i5), n. 53 



Ibn Yunos. See Yunos 

 Ishak ben Honein (7-910 or 

 911), in. 56 



James I., v. 102 ; vii. 147 

 James II., ix. 192 

 Janssen, xin. 301, 307 n 

 Joachim. See Rheticus 



Kaas, v. 106 



Kant, xi. 250; xii. 258, 260; 

 xin. 287 



Kapteyn, xm. 280 



Kelvin, xin. 292 



Kepler (1571-1630), n. 23, 51 #, 

 54 ; iv. 91 ; v. 94, 100, 104, 

 108-110; vi. 113, 121, 130, 

 132 ; VII. passim ; vm. 152, 

 156, 160; ix. 168-170, 172, 

 175, 176, 190, 194, 195 ; x. 

 202, 205, 220 ; xi. 228, 244 ; 

 xin. 294, 301, 309 



Kirchhoff (1824-1887), xin. 



299,300,3" 



Kirkwood (1815-1895), xin. 

 294, 297 



Koppernigk, iv. 71 



Korra, Tabit ben. See Tabit 



Lacaille (1713-1762), x. 222- 



224, 225, 227 ; xi. 230, 233, 



235 ; xn. 257, 259 

 La Condamine (1701-1774), x. 



219, 221 

 Lagrange(i736-i8i3), ix. 193 ; 



xi. 229, 231 #, 233 , 236, 



237, 238-240, 242-245, 247, 



248; xn. 251 ; xm. 293, 294 

 Lalande (1732-1807), XL 235, 



241, 247 n ; xn. 265 

 Lambert (1728-1777), xi. 243; 



xn. 265 



Lami, ix. 180 n 

 Landgrave of Hesse. See 



William IV. 

 Lang ley, xm. 307 

 Lansberg(i56i-i632), vm. 156 

 Laplace (1749-1827), xi. 229, 

 31 n, 238-248, 250; xn. 



251, 256; xin. 272, 273, 282, 



286-288, 290, 293, 297, 318- 



320 

 Lassell (1799-1880), xn. 267 ; 



xm. 295 



Lavoisier, xi. 237 

 Legendre 075 2 - l8 33). xm. 



275, 276 



Leibniz, ix. 191, 193 

 Lemaire, xn. 255 

 Leverrier ( 1 8 1 1 - 1 877), xin. 282, 



284, 288, 289, 290, 293, 294 

 Lexell (1740-1784), xii. 253 

 Lindenau, xi. 247 n 

 Lionardo da Vinci. See Vinci 

 Lippersheim (7-1619), vi. 118 

 Locke, ix. 191 

 Lockyer^ xin. 301, 302 

 Loewy, xm. 283 n 

 Louis XIV., vm. 160 

 Louis XVI., xi. 237 

 Louville (1671-1732), xi. 229 



