xliv 



INDEX OF TECHNICAL TERMS. 



Spagiric ait, c. 123 

 Specific heat, b. 553 

 Sphere, a. 156 



Spontaneous generation, c. 455 

 Statical electricity, c. 33 

 Stationary periods, a. 15 



pknets, a. 172 



Stations (of plants), c. 621 

 Sympathetic sounds, b. 348 

 Systematic Botany, c. 286 



Systems of crystallization, c. 237 



Tables, Solar (of Ptolemy), a. 184 



Hakemite, . 238 



Toletan, a. 238 



Ilchanic, a. 238 



Alphonsine, a. 238 



Prutenic, a. 402 



Rudolphine, a. 454 



Perpetual (of Lansberg) 



a. 454 



Philolaic, a. 457 



Carolinian, a. 457 



Tangential vibrations, b. 362 



Tautochronous curves, b. 109 



Technical terms, c. 340 



Temperament, b. 367 



Temperature, b. 521 



Terminology, c. 340 



Tertiary rocks, c. 549 



Tetractys, a. 65 



Theory of analogues, c. 500 



Thermomultiplier, 6. 547 



Thermotics, b. 517 



Thick plates, colours of, 6. 419 



Thin plates, colours of, b. 413 



Third law of motion, b. 45 



Three principles (in Chemistry), c. 



122 



Toletan tables, a. 238 

 Transition rocks, c. 578 



Transverse vibrations, b. 362, 440, 



453 



Travertin, c. 603 



Trepidation of the fixed stars, a. 241 

 Trigonometry, a. 221 

 Trivial names, c. 345 

 Trivium, a. 276 

 Tropics, a. 157 



Truncation (of crystals), c. 220 

 Type (in Comparative Anatomy), 



c. 489 



Variation of the moon, a. 241, 456 

 Vegetable alkali, c. 126 

 Vertebrata, c. 492 

 Vibrations, b. 362 

 Vicarious elements, c. 246 



solicitations, b. 86 



Virtual velocities, b. 42 

 Vitreous electricity, c. 12 

 Volatile alkali, c. 126 

 Volta-electrometer, c. 186 

 Voltaic electricity, c. 83 



pile, c. 84 



Volumes, theory of, c. 171 

 Voluntary, violent, and natural mo- 

 tion, b. 18 

 Vortices, b. 141 



Uniform force, b. 32 



Unity of composition (in Compara- 

 tive Anatomy), c. 600 



Unity of plan (in Comparative Ana- 

 tomy), c. 600 



Week, a. 151 

 Year, a. 123 



Zenith, a. 245 

 Zodiac, a. 157 

 Zones, a. 167 



