INDEX. 675 



Page. 



Langley, 8. P. , " Good seeing " .■. 193-195 



greatest flying civatnic 103 



laws of Nature^ - 102 



mechanical flight researches 7 



personal-equation machine designed 1 )y 93 



phenomena of sun spots 161 



researches in solar radiation 165 



Secretary's report to the Regents 1-115 



Langmuir, A. C, literature of zirconium 100 



Lansing man, Holmes on 455-462 



post-dlacial -162 



l)rohable age of 461 



skull, description of 456 



Laplanders in Alaska 616 



Lassiinonne, S. E 36 



Lavoisier's researches in low temperaturt' 21 1 



Laws of Nattire, by Langley 102 



Lebaudy's balloon" ". 122, 125 



Lebedew, Peter, explanation of comets' tails 180 



pressure of light 1 77, 178 



Le Mesurier, E. A. , letter from xi v 



Lendenfeld, Pr. von, Hodgkins grant to . . -9 



telephotography exj)eriments 9 



Lenses, imjirovements in 153 



Lessejis, Ferdinand <le 539 



Levy, Michel, geological researches l)y 298 



Librarian, report of 97-99 



Libraries, jniblications distribute<l to 13 



Library, accessions to 97 



Secretary's report on 14 



Library of Congress, Smithsonian deposit in 14, 98 



Life of matter, ,Dastre on :!93-429 



phenomena, study of 628 



Light, cheapest form of, by Langley 100 



electro-magnetic theory of 1 80, 263 



firefly, investigation of - 9(5 



magnetic theory of 177 



photographic action of 237 



pressure of 1 77, 1 78, 180 



stellar, researches in 159 



wave theory of 1 80 



waves, velocity of 263 



Lindsay, Senator xi 



Linguistic evidence in racial j)roblems 464 



Li(iuefaction of gases, Dewar on 214 



Liquid air 219, 220 



effect on 1 )acteria 239 



carbtjnic acid 214 



helium 221 , 226 



hydrogen 2 1 9, 221 



properties of 221 , 222 



Travers's researches in 10 



oxygen ...,j.. ,,.,... ,,,.,.,,..,,,. 219 



