xxii AUTHORS CONSULTED. 



BLACK Elements of Chemistry. 



BLUMENBACH . . . System of Comparative Anatomy. Skulls 



of All Nations. 



BOOLE . . . . Laws of Thought. 



BouiLLET .... Dictionnaire des Arts et des Sciences. 



BRANDS Manual of Chemistry. 



BREWSTER .... Martyrs of Science. Life of Newton. 



Optics. On New Philosophical Instru- 

 ments. 



BUCKLE . . . . History of Civilisation. 



BUCKLEY .... Short History of Natural Science. 



BUCKNER .... Force and Matter. 



BUFFON .... Histoire Naturelle. Epoques de la Nature. 



BURN . . . . . Handbook of Object Teaching. 



CARPENTER .... Physiography. On the Microscope. 



CATO De Re Rustica. 



CHURCH, R. W. . . . Bacon. 



CLARKE . . . .A Table of Specific Gravity for Solids 



and Liquids. 



CLERK MAXWELL . . See MAXWELL. 



CLIFFORD .... The Elements of Dynamics. Seeing and 



Thinking. 



COMTE Philosophic Positive. 



CONDORCET .... Progres de 1'Esprit Humain. 



COOKE Elements of Chemical Physics. 



COPE The Origin of the Fittest. 



CROLL Climate and Time. 



CUVIER Histoire des Sciences Naturelles. Revolu- 

 tions du Globe. Ossements Fossiles. 

 The"orie de la Terre. 



CYCLOPAEDIA . . . Lardner's. 



CYCLOPAEDIA . . . Rees'. 



DALTON . ' ... . Chemical Philosophy. 



DARWIN .... Origin of Species. Descent of Man. The 



Variation of Animals and Plants. 



Fertilisation of Orchids. 

 DAVIES, BARNARD . . Thesaurus Craniorum. 



DAVY Works. 



DE MAISTRE . . . (Euvres. 



DESCARTES . . . .La Methode. 



D'ORBTGNY .... Dictionnaire des Sciences Naturelles. 



DRAPER .... Intellectual Development of Europe. 



Conflict between Religion and Science. 

 DRINKWATER . . . Life of Galileo. 

 DUNCAN .... Heroes of Science. 

 DUPUIS Origine des Cultes. 



