INDEX 



483 



New World, discovery of, a sort oj 



laboratory experiment, 160 

 Newton, Prof. H. A., discovery oi 



nature of meteorites, 275 

 Newton, Sir Isaac, character of 



258 

 discoveries, almost anticipated by 



Kepler, 190 



his discoveries and ideas, 253 

 his process of discovery, 186 

 law of gravitation discovered, 



255 



letters to Bentley, 452 

 on atoms, 34 



period of mental eclipse, 263 

 New star, Galileo's controversy re- 

 garding a, 199 

 New stars, spectroscopic detection 



of, 379 

 Nicholas of Cusa, observation of 



sun-spots, 181 

 Nichols and Hull, demonstrate 



pressure of light, 433 

 Nietzsche, Fr., quotation from, viii 



his " blonde beast," 49 

 Notations, primitive, 52 

 Nova Persei, its distance and 



grandeur, 380 

 NOVCB, origin of, 380 

 Novum Organum, a passage from, 



246 

 Nutation, discovered by Bradley, 



288 



OBSERVATORY, astronomical, first in 



Europe, 154 



Olbers, finds new asteroids, 309 

 Omar Khayyam, his culture and 



character, 155 



myth of burning of the Alexan- 

 drian Library, 1 1 1 

 Omens, ancient belief in, 4 



belief in, 5 1 

 Opinions of Philosophers, a work 



attributed to Plutarch, 93 

 Optiks, quotation from Newton's, 



449 

 Orbits of stars, 350 



of double stars, 373 

 Order, perception of a fixed, 465 

 Orders in nature, conjectures on 



their existence, 396 

 Oscillatorium Horologium, a work 



by Huyghens, 245 

 Osiander, his forged preface to 



Coppernicus, 164 

 Ostwald, Wilh., on gravitation, 



453 



Oxford, Bruno's disputations at, 

 178 



PACIFICUS, his early clock, 244 

 Paley, his famous work, 263 

 Pantheism, Bruno its godfather, 



182 

 Papyri, number of, in Alexandrian 



Library, 152 



Parallax, first measurements of, 86 

 of the sun, Galileo's search for, 



202 



of the sun, problem of, 227 

 stellar, first discoveries of, 334 

 Paris, in the thirteenth century, 



!52 



Parliament of Paris, its extra- 

 ordinary decree, 220 



Parthenon, golden image in, 69 



Pascal, development of the baro- 

 meter, 241 

 fright before the infinite, 30 



Pasteur, on spontaneous generation, 

 436 



Pattern of worlds, probably not 

 very diverse, 364 



Pendulum, isochronism, discovery 

 by Galileo, 198 



Pentateuch, the, as a cosmogony, 

 10 



Period, of double stars, 374 



Persecution, religious, enormous 

 number of its victims, 164 



Petrarch, an evangel of the Re- 

 naissance, 159 



Philolaus, of Crotona, his ideas, 

 103 



Philosophy, its worthlessness, 15 



Physical sciences, little developed 

 among the ancients, 148 



Physics, cosmic, a new study, 



349 . 



Piazzi, discovery of the first aster- 

 oid, 307 



Picard, new measures of the earth, 

 256 



Pickering, discovery of spectro- 

 scopic binaries, 374 

 on distribution of the stars, 

 394 



Pivot of the sky, Polaris, 101 



Planet, Kepler's hypothetical, 307 



Planetarium, Archimedes' construc- 

 tion of the, 116 



Planetary motion, Kepler's laws of, 



188 



system, shape and arrangement 

 of, 3M 



