INDEX 



241 



Fermat's law, 115 

 Ferments, 130 



Ferns, reproduction of, 158 

 Fertilization, of eggs, 158, 159 



of plants, 157 

 Feudal system, collapse of. 11, 77 

 Field, general theory of, 115 

 Fischer, Emil, 129, 130 

 Fission of atomic nuclei, 142 

 Fleming, J. A., 44, 109 

 Flint, 23, 24 



technology of, 42 

 Flowers, function of, 151 

 Fol, Hermann, 158 

 Foresight, 229 

 Fowler, Ralph, 56 

 France, Anatole, 19 

 Frank, Tenney, 39 

 Frankland, E., 127 

 Franklin, Benjamin, 86, 103 

 Fraunhofer, J. von, 98, 116 

 Frazer, J. G., 46, 47 

 Fresnel, Augustin, 100, 101, 113 

 Friction, heat produced by, 93 

 Friedel, C, 127 

 Frustration, 62, 63, 229 



Galen, 73, 76, 78, 144 



Galileo, 18, 61, 67, 78, 79, 85, 88, 



89, 96, 119 

 Galvani, L., 103 

 Gamma rays, 136 

 Gassiot, J., 105 

 Geissler, Heinrich, 105 

 Genera, 147 



General Electric Company, 207 

 Generation, spontaneous, 166 

 Genes, 160, 165 

 Genetics, 181 



Geophysical Laboratory, 177, 180 

 George, W. H., 49, 50, 52, 55 

 Gerhardt, C. F., 124 

 Germer, L. H., 113 

 Gibbs, Willard, 95, 131, 132, 199 



Gilbert, William, 81, 102 



Glands, 168 



Glass, optical, 98 



Government, the art of, 234, 235 



Grant, Joan, 18 



Gravitation, Newton's law of, 92 



Gray, Stephen, 102 



Greece, craftsmen in, 68 



cycles in, 33 



dark period in, 3 



history in, 3 



medicine in, 68 



philosophers in, 70 



philosophy in, 4 



science in, 67, 70 

 Greek books translated into Ara- 

 bic, 76 

 Greek education, 3 

 Greek philosophers, 68 

 Greek science, 226 

 Greenwich observatory, 176 

 Grew, Nehemiah, 151, 153 

 Grid tubes, 110 

 Grignard reaction, 127 

 Grijns, G., 169 

 Grimaldi, Francesco, 98, 100 

 Growth, processes of. 172 

 Guldberg, C. M., 131 

 Gutenberg, J., 20 



Hales, Stephen, 151 

 Halley, E., 69, 84, 85 

 Hamilton, W. B., 55, 99, 113 

 Hamm, 148 



Harvey, William, 146, 149 

 Hatshepsut's temple, 31 

 Havens, Raymond Dexter, 39 

 Hayek, F. A. von, 1, 2, 62, 229 

 Heat, 93, 95 

 Hebrew scriptures, 75 

 Heisenberg, W., 113 

 Helium, 116. 134 

 Helmont. J. B. van, 151 

 Hemoglobin, 169 



