662 INDEX. 



Page. 



Muirhead, Alexander, experiments by 145 



Mullert, H. , researches by 387 



Municipal government in twelfth century 81 



Murphy, Frank M. , on preservation of Petrified Forest 303, 306 



Murphy, N. 0. , on preservation of Petrified Forest 304 



Murray, George, oceanic researches by 325 



Murray, Sir John, on advantages of Antarctic expedition 77 



on condition of ocean floor 309-328 



on oceanic area 278 



on volume of the ocean 253 



Muscle, change in mechanical properties of 331 



current, phenomenon of 339 



Muscular force, origin of 332 



motion, electrical phenomena of 329 



Muskak, Prince Piickler 415 



Myers, F. AY. H. , researches by 187 



N. 



Nadaillac, Marquis de 77 



Nahoa civilization in Central America 551 



Nahoas, symbols of 560 



Naples Zoological Station, Smithsonian table at 12 



Nasini, Professor, discoveries by 144 



Nathorst, Professor, explorations by 325 



National Museum, accessions to 20 



act of appropriation for xlix 



building repairs xxxvi 



duplicates distributed by 21 



exhibit at Omaha 83 



finances of .xxiv, 6, 7 



foreign exchanges by 33 



new building needed for xv 



property of 28 



publications of 78 



purchase money, needed xvi 



Secretary's report on 20 



True's report on 28 



National Physical Laboratory 164 



National University, committee on xviii, 3 



Natural bridge in Arizona 296 



Nature, mysteries of 188 



unity of 398 



Nature's operations which man is competent to study 207-222 



Naval architecture, j^rogress in 567-590 



Navarro, Juan N. , courtesies from 50 



Navigation, by Marshall Islanders 504 



steam, progress in 567-590 



Nebulfe, investigation of 217 



Neale, J. H. , collections by 451 



Nebular hypothesis, discovery of 397 



discussion of 229 



Negritos, in the Philippines 543 



origin of 510, 519 



