INDEX. 



Accumulator, Lead, The Internal Re- 

 sistance of the, 587 



Aeroplanes, Determination of the Al- 

 titudes of, 720. 



Agassiz, G. R., Letter from, 685. 



Agassiz, G. R., Max. and R. L., Letter 

 from, 714. 



Algal Coals, The Nature of Some Sup- 

 posed, 271. 



American Year Book Corporation, 

 ComiTiittee of, 725. 



Amerika-Institut of the German 

 Government, 683. 



Amory, Robert, Death of, 683. 



Ants, Division of Labor among, 423, 

 713. 



Assessment, Annual, Amount of, 733. 



Atomic Weight of Iron, A revision of 

 the, 716. 



Atomic Weight, The, of Neodymium, 

 213, 684. 



Babbitt, L. A., On the von Walten- 

 hofen Effect in Soft Iron Rings, 

 735. 



Baldwin, Loammi F., Letter from, 

 714. 



Barroetia, Revision of the Genus, 725. 



Baxter, G. P., and Chapin, H. C, A 

 Revision of the Atomic Weight of 

 Neodymium. First Paper. — 

 The Analysis of Neodymium 

 Chloride, 213, 684. 



Baxter, G. P., and Thorvaldson, T., 

 A Revision of the Atomic Weight 

 of Iron. Fourth Paper. — The 

 Atomic Weight of Meteoric Iron, 

 716. 



Baxter, G. P., Thorvaldson, T., and 

 Cobb, v., A Revision of the 

 Atomic Weight of Iron. — Third 



Paper. — The Analysis of Ferrous 

 Bromide, 716. 



Bell, Louis, On the Opacity of Certain 

 Glasses for the Ultra-Violet, 669, 

 719. 



Boston 1915, Civic Pageant, 683. 



Boston 1915 Committee, 683. 



Boston Vocation Bureau, First Na- 

 tional Conference of, 684. 



Bowditch, C. P., Report of Treasurer, 

 727. 



Bowditch, H. P., Death of, 725. 



Bowditch, H. P., Biographical Notice 

 of, 739. 



Bridgman, P. W., The Action of Mer- 

 cury on Steel at High Pressures, 

 323, 686. 



Buckingham, E. N., Division of Labor 

 among Ants, 423, 713. 



Buddhaghosa's Way of Purity Ana- 

 lysed, 716. 



Building Committee, constituted, 

 733. 



Butcher, S. H., Death of, 717. 



Calanoid Copepoda from the Bermuda 

 Islands, 735. 



Calcium Carbide, On the Equilibrium 

 of the System consisting of. Cal- 

 cium Cyanide, Carbon, and Ni- 

 trogen, 245, 684. 



Calcium Cyanide, On the Equilibrium 

 of the System consisting of Cal- 

 cium Carbide, Carbon, and Nitro- 

 gen, 245, 684. 



Campbell, L. L. See Hall, E. H., and 

 Campbell, L. L. 



Campbell, W. W.. elected Associate 

 Fellow, 723. 



Cannon, W. B., Biographical Notice 

 of H. P. Bowditch, 739. 



