XVlll 



INDEX. 



Darwin, centenary of, and 50th An- 

 niversary of publication of " the 

 Origin of Species," ix 



Invitation from N. Y. Acad- 

 emy of Sciences to, iv 



influence of, on the mental and 



moral sciences, xxv, ix 



natural sciences, xv 



personal reminiscences of, and 



of the reception of " The Origin 

 of Species," Hi, ix 



the world's debt to, xxxviii 



Device for tabulation of the sums 



of numerous variable functions, viii 



Digestive processes, the correlation 

 of the gastric and intestinal, and 

 the influence of emotions upon 

 them, XV 



Diplomatic life and diplomatic 

 usage, v 



Donaldson, some conditions modify- 

 ing the interpretation of human 

 brain weight-records, vii 



Doolittle, Charles L., Halley's Comet, 



XV 



Eric, Penrose's graphical method 



for orbit determination, ix 



E 



Earth, past history of the, as in- 

 ferred from the mode of forma- 

 tion of the solar system, 119 



Earthquakes, their causes and ef- 

 fects, 235, xi 



, symposium on, xi, xii 



Election of members, ix 



of Officers and Councillors, iii 



Electrometric measurements of the 



potential difference between two 



conductors of a condenser, 189, xi 

 English speaking, some aspects of 



the question of, iv 

 Ether, recent work on the physics 



of the, viii 



Fauna, destruction of the fresh- 

 water, in western Pennsylvania, 

 90, viii 



Fisheries question, the American — 

 British Atlantic, 319, vi 



Flexner, specific chemo-therapy of 

 the protozoal diseases, xi 



Fullerton, influence of Darwin on the 

 mental and moral sciences, xxv, ix 



Geology, seismic, the present status 



and outlook of, 259, xi 

 Gilman, obituary notice of Daniel 



Coit, Ix'n, V 

 Goodale, influence of Darwnn on the 



natural sciences, xv, ix 

 Grating, an adjustment for a plane, 



166, xi 

 Gratings, the ruling of diffraction, x 

 Greetings and congratulations cabled 



to Sir Joseph Dalton Hooker and 



Dr. Alfred Russel Wallace, ix 

 Gun cotton, detonation of, 69, viii 



H 



Halley's Comet, xv 



Harshberger, comparative leaf struc- 

 ture of the strand plants of New 

 Jersey, 72, vii 



Harvard University, invitation to in- 

 auguration of its President, xix 



Haupt, Lewis M., the nation and the 

 waterways, 51, vi 



Paul, The Burning Bush and the 



origin of Judaism, 354, viii 



Heyl, recent work on the physics of 

 the ether, viii 



Hindu Idea, iv 



Hirst, obituary notice of R. A. F. 

 Penrose, Iviii 



Hobbs, the present status and out- 

 look of seismic geology, 259, xi 



Hooker, acknowledgment of greet- 

 ings, xiii 



greetings and congratulations 



cabled to, ix 



Hovey, earthquakes, their causes and 

 effects, 235, xi 



Hiilsen, machines and engineering in 

 the renaissance, viii 



Indo-European peoples, viii 



van Ingen, st'ratigraphic position of 

 the Oolitic iron-ore at Blooms- 

 burg, Pa., viii 



International Congress of American- 

 ists, invitation, xv 



International Zoological Congress, 

 invitation, xvi 



Irish race, Prof. Mahaff'y on, iv 



Iron-ore, stratigraphic position of 

 the Oolitic — at Bloomsburg, Pa., 



