pages 433-484 
. 434-437 
to find 
. 437-4B8 
. 438-439 
screws 439 
. 440-517 
440 
. 440 441 
. 441-448 
443 
re Dio- 
. 443-444 
. 444-447 
448 
. 448-450 
. 449-514 
. 449-450 
. 451-452 
453 
. 453-455 
. 455-461 
. 456-457 
. 458-459 
. 459-460 
. 462-479 
. 462-476 
. 462-463 
. 463-465 
mdratics 465 
465 
d degree 466-473 
. 466-468 
. 468-473 
egree . 469-472 
,1 degree 472-473 
e higher 
XXI. COMMENTATORS AND BYZANTINES . . pages 518 555 
Serenus .... 519-526 
(a) On the Section of a Cylinder ..... 519-522 
(j3) On the Section of a Cone. ..... 522-526 
Theon of Alexandria 526-528 
Commentary on the Syntaxis ..... 526-527 
Edition of Euclid’s Elements 527-528 
Edition of the Optics of Euclid ..... 528 
Hypatia .......... 528-529 
Porphyry. lamblichus 529 
Proclus .......... 529-537 
Commentary on Euclid, Book I . . . . . 530-535 
(a) Sources of the Commentary .... 530-582 
• (/3) Character of the Commentary .... 582-535 
Hypotyposis of Astronomical Hypotheses . . . 535-536 
Commentary on the Republic 536-537 
Marinus of Neapolis 537-538 
Domninus of Larissa ..... . 538 
Simplicius 538-540 
Extracts from Eudemus . . . . . 539 
Eutocius 540-541 
Anthemius of Tralles ....... 541—543 
On tmrniny-mirrors ....... 541-543 
The Papyrus of Akhmim ....... 543-545 
Geodaesia of ‘ Heron the Younger ’. .... 545 
Michael Psellus 545-546 
Georgius Pachymeres 546 
Maximus Planudes 546-549 
Extraction of the square root 547-549 
Two problems . . . . . . . 549 • 
Manuel Moschopoulos 549-550 
* Nicolas Rhabdas 550-554 
Rule for approximating to square root of anon-square 
number ......... 553-554 
loannes Pediasimus 554 
Barlaam 554-555 
Isaac Argyrus . . 555 
APPENDIX. On Archimedes’s proof of the subtangent-property 
of a spiral 556-561 
INDEX OF GREEK WORDS 563-569 
473-476 
. 473-475 
. 475-476 
. 476-477 
. 477-479 
bers . 479-484 
s as the 
ENGLISH INDEX 
. 570-586 
. 481-483 
piares . 483 
rsquares 483-484 
s . . 484-514 
. 514-517