652 INDEX. 



E. 



Page. 



Eakle, Arthur S. , paper l)y 79 



Earth, age of, T. C. Chamberlain on 223-246 



condition of center of 34 



geological age of, Joly on 247-288 



hal)itable era of 238 



mean density of 320 



temperature of crust of 255 



Eddy, Thomas A., courtesies from 50 



Eddy, William A., kite experiments by 10 



JMinger L. , on memory of fishes 375-394 



Editors report 75-81 



Egypt, recent research in 77 



Egyptian gardens 404 



Einthoven, Professor, cited 335 



Eisen, Gustav, on Guatemala sculptures 550 



Electric furnace, researches with 120 



Electrical advance, Elihu Thomson on 7(5 



measurements, units of 015 



objects in Museum 30 



phenomena of motion in animals and plants 329-351 



Ele(!tricity, animal 340 



Bunsen's carbon-zinc battery (514 



high potential discharges of 128 



^lichael Foster on progress in 1(57 



progress in study of 122 



Electro-chemical equivalent of water 615 



Electrolytic preparation of metals 616 



Electromagnetic waves, discovery of 1 44 



researches in 124 



Electrometer, capillary, researches with 334 



Electro-i)hysiology, work on 350 



Elements, ancient definition of 166 



discovery of new 76, 144 



Elephant tusks, size of 355 



Ellis, Havelock, on mescal 77 



Embryology, progress in study of 1 72 



Energy, conservation of, Rice on 398 



conversion of chemical to mechanical 331 



in quiescent air 151 



law of conservation of 203 



origin of, in radium 160 



potential and thermal 230 



sources of 150 



stored in air 151 



sun's, measureless store of 620 



Engelmann, Professor, researches by 331, 349 



Engine, steam, century's progress of 591-603 



White on progress in 588 



Erasmus, Norcross on 81 



Establishment, Smithsonian, members of ix, 1 



Estimates for year 1900 i 7 



Ether, effects of vibrations of 200 



