422 



SCIENCE 



[N. S. Vol. LIII. No. 1374 



The prelimiiiary progi-am of scientific sessions 

 open to tlie public follows. 



MONDAY, APRIL 25 



Afternoon Session 

 Ultimate rational units (illustrated) : Gilbert 



N. Lewis. 

 The quantum law and the Doppler effect: "William 



DUANE. 



Preliminary measurements of the effect of high 

 pressures on the thermal conductivities of liquids 

 (illustrated) : P. W. Bridgman. 



The stratification of suspended particles (illus- 

 trated) : C. E. Mendenhall and Max Mason. 



Transmission characteristics of the submarine 

 cable (illustrated) : J. R. Carson and J. J. Gil- 

 bert (introduced by J. J. Carty and P. B. 

 JeTvett) . 



Radiation from transmission lines: J. R. Carson 

 (introduced by J. J. Carty ^and F. B. Jewett). 



Application . of the principle of similitude to the 

 hydraulic problem of the surge chamber (illus- 

 trated) : W. !P. Durand. 



Theories of osmotic pressure; Comments on the 

 Borelius space-lattice theory of the metallic 

 state : E. H. Hall. 



Metamorphism in meteorites (illusitrated) : G. P. 

 Merrill (introduced by Whitman Cross). 



The Island of Tagula (New Guinea), its satellites 

 and coral reefs; The shallow seas of Australasia: 

 W. M. Davis. 



On the radiation of energy from coils in wireless 

 telegraphy; On the vibrations of gun-barrels; 

 On the problem of steering an automobile around 

 a corner: A. G. Webster. 



Evening Session 

 Address by His Serene Higliuess Albert I., 

 Prince of Monaco, Agassiz medalist. Auditorium 

 TJ. S. National Museum. Reception to the Prince, 

 Galleries, U. S. National Museum. 



TUESDAY, APRIL 26 



Morning SesSi.on 

 A model of the solar gravitational field; Edward 



Kasner. 

 On the problem of three or more bodies: George 



D. BiKKHOFP. 



Quaternions and .their generalizations: L. E. 



Dickson. 

 Investigations in algebra and number theory: L. 



E. Dickson. 



On the approximate solutions im, integers of a set 

 of linear equations: H. P. Blicheeldt. 



A provisional theory of new stars: H. N. Russell. 



The compilation of star catalogues by means of a 

 doublet camera (illustrated) : E. Schlesinger. 



The National Research Council: Vernon Kellogg. 



The order of the stars (illustrated) : W. S. Adams. 



Coohing with solar heat on Mt. Wilson (illus- 

 trated) : C. G. Abbot. 



The evolution of matter: E. W. Clarke. 



The differences between variable sei>ies: Eranz 

 Boas. 



Life of James Hall, of Albany, geologist and 

 paleontologist, 1811-1890 (by title) : J. M. 

 Clarke. 



Afternoon Session 



The classification of animals: Austin H. Clabk. 



Attempts to acclimatize Aphelinus mali in France, 

 South Africa, New Zealand and Uruguay (illus- 

 trated) : L. O. Howard. 



Note on structure of the trilobite (illustrated) : C. 

 D. Walcott. 



Origin an-d history of the Ursidae or bears in the 

 Western Hemisphere, with particular reference 

 to the beofring of this question on problems of 

 geograpMeal history (illustrated) : J. C. Mer- 



RIAM. 



The evolution, phylogeny and classification of the 

 Froboscidea (illustrated) : H. E. Osborn. 



Experiments in epidemiology : Simon Plexner. 



Effect of administering various simple metabolites 

 upo7i the heat production of the dog (illus- 

 trated) : Graham Lusk. 



The physiccd and chemical behavior of proteins 

 (illustrated) : Jacques Loeb. 



The shin temperature of Pachyderms (illustrated) : 

 Francis G. Benedict, Edward L. Eox and 

 Marion L. Baker. 



The temperature factor in phytopathology (illus- 

 trated) : L. R. Jones. 



Results of feeding experiments with mixtures of 

 food stuffs in unusual proportions (illustrated) : 

 T. B. Osborne and L. B. Mendel. 



Population (illustra,ted) : C. B. Davenport. 



Measuring higlier grades of intelligence: E. L. 

 Thorndike. 



A study of specific forces of mortality: Raymond 

 Pearl and Charmian Howell. 



C. G. Abbot, 

 Some. Secretary 



Smithsonian Institution, 

 Washington 



