Clayton., Geo., II, _98_.

Cluvier, D., II, 332, _332_.

Cobb, Mary, II, 117.

Cobbett, W., I, _177_, 200, 399.

Cobden, R., II, 217.

c.o.c.ker, I, _42_; II, 64, 173, 251, 307.

Cody, P., II, 208.

c.o.ke, E., II, _331_.

Colburn, Z., I, _86_.

Colenso, I, _63_, 247; II, 191.

Collins, J., I, _107_; II, 297, 300, 302, 313.

Colvill, W. H., II, 68.

Cometic astrology, I, 128.

Comets, I, 128; II, 68, 83.

Cominale, C., I, _162_, 162.

Compton, S. J. A., II, _19_.

Computation, Paradoxes of, II, 251, 267.

Condamine, C. M. de la, II, _301_.

Conduitt, John, I, _397_.

Conduitt, Mrs., I, _136_.

Congregation of the Index, I, 90.

Converse propositions, I, 295.

Convocation at Oxford, I, 96.

Cooke, Margaret, I, _310_.

Cooper, A. A. (Shaftsbury), II, _181_.

Copernicus, I, 5, 6, _76_, 90, 121, 172, 380; II, 165, 335.

Copley, J. S., I, _198_.

Cormouls, I, 225.

Cosmology, I, 172.

{378} Cotes, R., II, _301_.

Cottle, Mrs., II, 97, _97_, 161.

Craig, J., I, _129_, 129.

Creed, Mathematics of a, I, 329.

Cribb, T., I, _314_.

Crotus, J., I, 318.

Cruickshank, G., I, _186_.

Cube, Duplication of, I, 349.

c.u.myns, Eliza, I, 299.

Cunningham, I, 172, _172_.

Curabelle, I, _221_.

Curious Calculations, II, 66.

Curll, E., II, _279_.

Cusa, I, _44_, 47, 360.

Custom, II, 324.

Cyclometry, II, 208. (_See Squaring of the Circle._) Cyclopaedias, Review of, II, 280.

D'Alembert, I, _382_; II, 283, 364.

Dalgarno, I, 116, _117_.

Dalton, J., I, _255_.

D'Arblay, Mme., I, _190_.

Darwin, E., II, _8_.

Darwinism, Primitive, I, 344.

Dary, M., II, _305_.

Daval, P., II, _298_.

Davies, T. S., II, 151, _151_, 188.

Day, A., I, 295, _295_.

De Baruel, I, 165.

De Beaune. (_See Beaune._) De Becourt, II, 277, _277_.

Debenham, J., I, _393_.

De Causans. (_See Causans._) Dechales. (_See de Challes._) De Challes, I, _45_.

Decimal coinage, II, 80, 168, 169.

Decimals run riot, II, 80.

Dee, J., II, _302_.

De Faure, I, 149.

De la Leu, I, _297_.

Delambre, I, _160_, 167, 354; II, 165.

Democritus, II, _34_.

De Moivre, I, 24, _376_; II, 298.

De Molieres, I, _220_.

De Molina, I, _297_.

Demonville, I, 291, 293.

De Morgan, A., I, 191, 383; II, 194.

--Refusal of LL. D., I, 191.

De Morgan, G. C., I, 383.

De Morgan, Mrs., I, _196_; II, 194.

Denison, J., I, 348, 353.

Desaguliers, I, _153_, 156, 157.

Desargues, I, _119_, 221.

Descartes, I, 5, 59, 105, 132, 165, 204, 220; II, 94.

De Serres, II, _60_.

De Sluse. (_See Sluse._) De Thou, I, 51, _111_, 113; II, 295.

De Vausenville, I, 12.

Devonshire, Duke of (7th), I, _290_.

Diamandi, I, 86.

Didacus Astunica, I, 90.

Diderot, II, _4_, 283, 339.

Digby, K., I, _108_.

Digges, T., and L., II, _302_.

Dionysius Exiguus, I, _360_.

Dircks, H., II, 138, _138_.

Discoverers and discoveries, II, 206.

Discovery, Basis of, I, 85.

D'Israeli, I., I, _115_, 118, 136, 188, 227.

Ditton, I, _133_, 133.

Division, Nature of, II, 248.

Dobson, J., I, _234_, 234.

Dodson, J., II, _312_.

Dodt, I, _52_.

Doggerel verse, I, 341.

Dolland, I, _377_.