KEY AND INDEX 



Archir 



Arban, M., his record flight in a 

 balloon, 7, 256. 



Arcadius, public windmills ap- 

 peared in Rome about the 

 time of this ruler, 6, 71. 



Archaeology, The New Science 

 of Oriental, Chapter X, 4, 

 287. 



Archer, Frederick Scott, in- 

 vented the collodion plate, 8, 

 230. 



limedes, invented many me- 

 chanical contrivances, 1, 197; 

 the Archimedian screw, ibid.; 

 his devices for the defence 

 of Syracuse, 1, 198; his com- 

 bination of multiple pulleys, 

 1, 200; his invention of the 

 catapult, 1, 201; his con- 

 trivance for wrecking galleys, 

 1, 202; 6, 34; the mythical 

 legend of the burning-glass, 

 1, 205; his studies of the 

 properties of the lever, 1, 206; 



his experiment with King Armature, see Dynamo, 6, 173. 

 Hiero's crown, 1, 207; his Armature, ring, invented by the 

 demonstrations of the buoy- 

 ancy of water, 1, 208; the 

 problem of the triangle and 

 a circle, 1, 209; his crude 

 conception of the idea of 

 logarithms, 1, 210; his as- 

 sumption about the size of the 

 sun and earth, ibid., his com- 

 putation about the number of 

 grains of sand that would be 

 required to cover the sphere 

 of the sun's orbit, 1, 211; 

 recorded laws of the lever, 

 realized possibilities of, 6, 

 30; classical remark regard- 

 ing moving of world, 6, 31. 



Argand, Aim6, his invention of 

 the oil lamp with a circular 



of his spherical figure of the 

 earth, 1, 183; a pathfinder in 

 the science of zoology, 1, 185; 

 his divisions of the verte- 

 brates and invertebrates are 

 accepted by every one to-day, 

 1, 186; his classification of 

 blood-bearing animals and 

 fishes not far afield from 

 modern divisions, 1, 187; 

 considered manual toil de- 

 grading, 6, 26. 



Arkwright, Sir Richard, his 

 development of the spinning 

 frame marked the beginning 

 of the new era, 6,21; his early 

 life, 9, 26; aided by a Mr. 

 Strutt he interests capitalists 

 in his invention, 9, 27; capi- 

 talists combine to defraud 

 him of his patents, 9, 28; 

 court decision finally rendered 

 against him, 9, 30; traits in 

 his character, 9, 31. 



wick, 6, 205. 



Argon, discovery of, 5, 85, 86. 



Argus, the attack on, by Ful- 

 ton's submarine, 7, 101. 



Aristarchus, of antiquity, 1, 

 218, 220, 221. 



Aristotle, his name a synonym 

 for Greek science a thousand 

 years after his death, 1, 182; 

 his acceptance of the doctrine 



Italian, Picnotti, 6, i?< 

 re-invented by Gramme, 6, 

 179. 



Armstrong, Lord, his water 

 motor, 6, 121. 



Arnald of Villanova, physician, 

 2, 34. 



Artificial Gems, 9, 327. 



Artificial Stone, or Concrete, 

 Chapter VIII, 9, 182. 



Artificial Stone, or Concrete, the 

 manufacture of, 9, 182; con- 

 crete blocks, 9, 184: mixing 

 the materials, 9, 187; mold- 

 ing the blocks, 9, 189; utility 

 and beauty, 9, 193; rein- 

 forced concrete construction, 

 9, 195; advantages of rein- 

 forced concrete, 9, 197; 

 strength and durability ot 

 concrete, 9, 201; the rein- 

 forcing skeleton of metal, 9, 

 204; a modern building, 9, 

 205. 



Arzachel, "trepidation of the 

 fixed stars," 2, 16. 



Assyria, Science of Babyloma 

 and, Chapter III, 1, 56. 



[160] 



