INDEX. 677 



D. Page. 



Dall, W. H xii, 18, 28, 79, 83 



Dalzell, Representative John (Regent) xi, 95, 96, 102 



Damas, D 80 



Darwin, Charles 363, 365, 366, 368, 373, 377, 378, 382, 666 



Darwinian evolution 363 



Date line, international 252 



Daughters of the American Revolution 13, 85 



Deaths: 



Chanute, Octave 101 



Fuller, M. W 2, 25, 81, 96, 101 



Densmore, Miss Frances 31, 40, 84 



Denudation, a preliminary study of chemical 271 



Deodorizing ageut, use of ozone as 621, 628 



Deslandres, Dr. H 82 



De Vries, Prof. Hugo 363, 365, 372, 373, 377 



De Vriesian evolution , 363 



Dewar, James 100 



Diseases, study of infectious (Koch) 651, 657 



Disinfection 606 



Dixon, Henry H 82 



Dixon, R. B 84 



Dominion Observatory 255, 260, 264 



Doncaster, Leonard 82 



Donehoo, Dr. George P 31 



Dorsey, H. W xi 



Douglas, James 80 



Duerden, J. E 82 



Dunn, J. P 31, 41 



Duplex telegraphy 146, 149, 152 



Duplex telephony 140, 142 



Duplex-Diplex telegraphy 149, 152 



Duplex-Diplex telephony 138 



Dyar, Harrison G 83 



E. 



Earth, denudation of 271 



the age of the (Joly) 271 



Economy, industrial 611, 616 



Editors of the Institution and branches xi, xii, 13, 83, 84, 86 



Efficiency, factory 611 



Eisen, Gustav 83 



Elder, Mr 62 



Electric furnaces 174, 179 



Electric steel, manufacture of 179, 182 



Electricity, value of to chemists 168 



Electrochemical industries 167 



Electrochemistry, what it is accomplishing (Richards) 167 



Electrolysis 169 



Electrolytic apparatus 169 



Electrometallurgy, scope of 167, 168 



Electroplating 172 



Electrotyping 172 



Elements, chemical 183, 185, 199 



