584
ENGLISH INDEX
Rudolph of Bruges ii. 292.
Ruelle, Ch. im. ii. 538.
Rüstow, F. W. ii. 809.
Ruler - and - compasses restriction
175-6.
Sachs, Eva, 209«.
Salaminian table 48, 50-1.
Salmon ii. 28, ii. 103.
Sampi = 900) derived from
Ssade q.v.
Sar (Babylonian for 60 2 ) 28, ii. 215.
Satapatha Brahmana, 146.
Savile, Sir H., on Euclid 360, 369.
Scalene', of triangles 142: of certain
solid numbers 107: of an odd
number (Plato) 292: of an oblique
cone ii. 134.
Schiaparelli, G. 317, 330, ii. 539.
Schmidt, W. ii. 308, 309, 310.
Schöne, H. ii. 308.
Schöne, R. ii. 308, 317.
Scholiast to Charmides 14, 53.
Schooten, F. van, 75«,, ii. 185.
Schulz, O. ii. 455.
Scopinas ii. 1.
Secondary numbers 72.
Sectio canonis 17, 215, 444.
Seelhoff, P. 75 n.
Seleucus ii. 3.
Semicircle : angle in, is right
(Thales) 131, 133-7.
Senkereh, Tables 28, 29.
Senti, base (of pyramid) 427.
Se-qet, ‘that which makes tb e nature ’
(of pyramid) = cotangent of angle
of slope 127-8, 130, 131.
Serenus ii. 519-26: On section of
cylinder ii. 519-22, On section of
cone ii, 522-6.
Sesostris (Ramses II) 121.
Sexagesimal system of numerals
and fractions 28-9 : sexagesimal
fractions in Greek 44-5, 59, 61-3,
233, ii. 277-83.
Sextius 220.
Sicily 8.
‘ Side-’ and ‘diameter-numbers’ 91-
3, 112, 153, 308, 380, ii. 536.
Simon, M, 200.
Simplicius: extract from Eudemus
on Hippocrates’s quadrature of
lunes 171, 182-99 : on Antiphon
221-2 : on Eudoxus’s theory of
concentric spheres 329: commen
tary on Euclid 358, ii. 539-40 : on i
mechanical works of Archimedes
ii. 24: ii. 538-40.
Simson, R., edition of Euclid’s
Elements 365, 369, and of Euclid’s
Data 421: on Euclid’s Porisms
435-6 : restoration of Plane Loci
of Apollonius ii. 185, ii. 360.
Simus of Posidonia 86.
Sines, Tables of, ii. 253, ii. 259-60.
Sinus rectus, sinus versus 367.
Sluse, R. F. de, 96.
Smith, D. E. 49, 133«.
‘ Solid ’ loci and problems 218, ii.
117—18: Solid Loci of Aristaeus
438, ii. 118-19.
‘Solid’ numbers, classified 106-8.
Solids, Five regular: discovery at
tributed to Pythagoras or Pytha
goreans 84, 141, 158-60, 168,
alternatively (as regards octahe
dron and icosahedron) to Theae
tetus 162: all five investigated
by Theaetetus 159,162, 212, 217:
Plato on, 158-60: Euclid’s con
structions for, 415-19 : Pappus’s
constructions ii. 368-9 : content
of, ii. 335, ii. 395-6.
Solon 4, 48.
Sophists: taught mathematics 23.
Sosigenes 316, 329.
Soss = sussu = 60 (Babylonian) 28,
ii. 215.
Speusippus 72, 73, 75, ii. 515: on
Pythagorean numbers 76, 318:
on the five regular solids 318 : on
theorems ih.
Sphaeric 11-12 : treatises on, by Au
tolycus and Euclid 348-52, 440-
1: earlier text-book presupposed
in Autolycus 349-50; Sphaerica
of Theodosius ii. 245, 246-52, of
Menelaus ii. 252-3, 260, 261-73.
Sphere-making 18: Archimedes on,
ii. 17-18.
Spiric sections ii. 203-6.
Sporus 226 : criticisms on quadra-
trix 229-30 : Krjpin 234: duplica
tion of cube 266-8.
Square root, extraction of, 60-3:
ex. in sexagesimal fractions
(Theon) 61-2, (scholiast to Eu
clid) 63: method of approxima
ting to surds ii. 51-2, ii. 323-6,
ii. 547-9, ii. 553-4.
Square numbers 69 : formation by
adding successive gnomons (odd