AUTHORS CONSULTED. xxiii 



ENCYCLOPAEDIA BRITANNICA. 

 ENCYCLOPAEDIA METROPOLITANA. 



ELLIS . . . /".--,. Bacon's Works (Spedding Edition). 

 EVANS . . . ' .1 . Ancient Stone Implements of Great 



Britain. 



FARADAY v .; . * -.?; <<-. Experimental Researches in Electricity. 



Various Forces of Nature. 



FAWCETT * . .A Manual of Political Economy. 



FLOURENS .... Eloge de Cuvier. 



FORBES .... Progress of Mathematical and Physical 



Science. Transit of Venus. 



FOSTER .... A Text-Book of Physiology. 



FRANKLIN . ~v' " . . Experiments and Observations on Elec- 

 tricity. 



GANOT . . /. . . , . ,. Physics. 



GARNET . ... Heroes of Science. 



GASSENDI . '\ ,; ; ; . Life of Copernicus. 



GEIKIE . . . . Text-Book of Geology. 



GEOFFROY ST. HILAIRE . Zoologie Ge'nerale. 



GLADSTONE .... Juventus Mundi. 



GOETHE .... CEuvres Scientifiques. 



GRANT . . . ... History of Physical Astronomy. 



GRAY, ASA . ., . . Botany. 



GREVILLE WILLIAMS . . Manual of Chemical Manipulation. 



GROTE . < . . History of Greece. 



GUILLEMIN . . . The Heavens. 



GUIZOT . . . .La Civilisation en Europe. 



HAECKEL . , . . The History of Creation. 



HALLAM , ' ' . . . The Middle Ages of Europe. 



HAMILTON .... Lectures on Metaphysics and Logic. 



HAMY . . , . . . Palaeontologie Humaine. 



HELVETIUS . '. , ... De TEsprit. 



HERBERT SPENCER . . Essays. First Principles. Principles of 



Psychology. 



HELMHOLTZ .... Tonempfindungen, als Theorie der Musik. 



HERSCHEL, W. . . . Familiar Lectures on Scientific Subjects. 



A Manual of Scientific Enquiry. 



HERSCHEL, J. Outlines of Astronomy. Results of Obser- 



vations at the Cape of Good Hope. 

 Study of Natural Philosophy. 



HOEFER .... Histoire de la Physique et de la Chimie. 



HOFMANN .... On Liebig and Faraday. Introduction to 



Chemistry. 



HOWES . . . -...;. Atlas of Practical Elementary Biology, 



with Preface by PROF. HUXLEY. 



