KEY AND INDEX 



phy, 8, 53; invents a tele- 

 phone transmitter 8, 84. 



Hughlings-Jackson, Dr., studies 

 of epilepsy, 4, 272. 



Hugon, M. P., gas engine of, 6, 



i3> 



Hulls, Jonathan, patented a 

 marine engine, 7, 66. 



Humboldt, Alexander, his me- 

 moir on isothermal lines and 

 the distribution of heat, 3, 

 192 ; made practicable a truly 

 scientific study of compara- 

 tive climatology, 3, 194; 

 called our atmosphere an 

 "aerial ocean," 3, 195; his 

 theories about the Gulf 

 Stream, 3, 196. 



Runnings, inventor of the first 

 long-distance transmittsr, 8, 

 84. 



Hunt, Walter, inventor of a 

 sewing-machine using a needle 

 with the eye near the point, 9, 

 92. 



Hunter, John, physiologist and 

 surgeon, 4, 78; his discovery 

 of lymphatics, 4, 80; his dis- 

 covery of the "collateral cir- 

 culation" of the blood, 4, 

 82 ; his operation for aneurism, 

 4, 84; surgeon-extraordinary 

 to the king, 4, 86; his theories 

 of the action of gastric juices, 

 4, 89; proved the action of 

 digestive fluid after death, 

 4, 90, 91. 



Hunter, William, physician and 

 anatomist, 4, 77; his love of 

 controversy, 4, 78. 



Hutton, Dr. James, claimed that 

 the face of nature is under- 



foing metamorphic changes, 

 , 118; the bases of the pres- 

 ent continents were being laid 

 in ancient sea beds, 3, 119; 

 the agency which solidified the 

 ocean beds is subterranean 

 heat, 3, 120; the destruction 

 of our land inevitable, 3, 122 ; 

 marks of marine animals in 

 solid parts of the earth, 3, 

 1 24 ; the elevation of the land 

 above the water was caused 



by the expansion of heated 

 matter, 3, 128; finds no ves- 

 tige of a beginning no pros- 

 pect of an end, 3, 129; his 

 theories hostile to sacred his- 

 tory, 3, 130; his theories ac- 

 cepted, 3, 140; his theory con- 

 cerning the vapor of water, 3, 

 178. 



Huxley, Thomas Henry, re- 

 views the work of Professor 

 Marsh, 3, 112; accepts Dar- 

 win's theory 4, 174; his es- 

 timate of Darwin's accom- 

 plishments, 4, 178. 



Huygens, Christian, 2, 218; im- 

 provement of the telescope, 2, 

 218, 219; his laws of motion, 

 2,222; "pneumatical experi- 

 ments," 2, 222; a resident of 

 France, 2, 224; his micro- 

 meter, 2, 254; application 

 of coiled balance-spring to 

 watches, 2, 256; originator of 

 the general doctrine of undu- 

 lation as the explanation of 

 light, 3, 224; gave the 

 first hint of the existence 

 of ether, 3, 284; attempted 

 to make practical use of the 

 power set free by the ex- 

 plosion of gunpowder, 6, 134. 



Hydrochloric acid liquefied, 6, 

 40. 



Hydrogen, liquefied by Profes- 

 sor Dewar, 6, 43 ; approach to 

 the absolute zero made by, 5, 

 69. 



Hydrophobia, Pasteur's inocula- 

 tions to prevent, 4, 240; slow 

 in manifesting itself, 6, 182. 



Hydrostatic press, principle of 



6, 74-75- 

 Hygiene, investigations in, at 



the Berlin Institute, 6, 196. 

 Hypnotism, phenomena of, 4, 



269. 



IATROCHEMICAL school of medi- 

 cine, 2, 186. 



latrophysical school of medicine 

 2, 187. 



Illustrations, the reproduction 

 of, 8, 184; wood -engraving. 



[188] 



