, II, 6.
Ptolemy, I, 5, 33, _380_.
Pullicino, II, 61, _61_.
Pusey, I, _64_.
Pyramids, The, I, 328; II, 95, 136.
Pythagoras, II, _59_.

Quadrature problem. (_See Squaring the circle._)
Quarles, F., II, _277_.
Quintilian, II, 280.
Quotem, C., I, 399.

Rabelais, I, _102_.
Rainbow Paradox, II, 334.
Ramachandra, Y., I, _374_.
Ramchundra, I, 374.
Ramus, I, 5.
Recalcati, II, 208, 314.
Recorde, R., II, _328_.
Reddie, Jas., II, 183, _183_, 344, 360.
Reeve, J., I, _395_.
Regiomontanus, I, _48_, 360.
Reisch, I, _45_; II, 281.
Religion and Philosophy, II, 37.
Religious bodies, Names of, II, 22;
--customs, Attacks on, I, 177;
--Insurance, I, 345;
--Paradox, I, 236;
--Tract society, I, 192.
Remigius, I, _50_.
Reuchlin, J., II, _323_.
Revelations, Napier on, I, 66.
Revilo, (O. Byrne), I, 241, 329, _329_.
Reyneau, C. R., II, _301_.
Rheticus, I, _69_; II, 372.
Rhonius, II, 300.
Ribadeneira, P. de, II, _62_.
Riccioli, I, _96_.
Richards, G., II, _270_.
Rigaud, J., II, _299_.
Rigaud, S. J., II, _299_.
Rigaud, S. P., I, _140_; II, 298, 313.
Ringelbergh, J. S., II, _281_.
Ripley, G., I, _126_, 126.
Ritchie, W., I, 295, _295_.
Ritterhusius, I, _60_.
Rive, J.-J., I, _160_.
Robertson, Jas., I, _237_.
Roberval, I, _105_, 122.
{385}
Robinson, B., I, _148_, 148.
Robinson, H. C., I, _314_; II, 52, 275.
Robinson, R., I, _177_.
Robinson, T. R., II, _181_.
Roblin, J., II, 136.
Rogers, S., II, _260_.
Roget, P. M., I, _398_.
Roomen, A. van, I, _110_.
Ross, J. C., I, _303_.
Rosse, I, 26.
Rossi, G., I, 231, _231_.
Rotation of the Moon, II, 4, 19.
Rough, W., I, 198.
Rowning, J., I, _155_.
Royal Astronomical Society, I, 27;
--Forerunner of, I, 374.
Royal Society, I, 21, 22, 24-30, 56, 57, 136, 153, 163,
164, 165.
Rudio, I, 159; II, 367.
Rudolff, C., II, 373.
Russell, Earl (1st), I, _296_.
Rutherford, W., II, _109_.

Sabatier, A., II, _267_.
Sabellius, I, _241_.
Sacrobosco, I, _360_.
Sadler, T., I, _238_, 241.
Saint-Martin, I, 167, _168_, 206.
St.-Mesmin, M. de., I, 280.
St. Vincent, G. de., I, _110_, 117.
St. Vitus, Patron of Cyclometers, II, 60.
Sales, de, I, 167.
Salicetus, I, 64.
Salisbury, Earl of (1st), II, _330_.
Salmasius, Claudius, II, _168_.
Salusbury, Hester, I, _235_.
Sanchez, Petro, I, 229, _229_.
Sanders, W., I, 207.