INDEX. 747 



M. 



MacLean, Mr. , letter quoted *^^ 



Magnetic sleep, Lang on g^g 



Magnetism and electricity, relation of 334 



progress in 327 



sun spots and j4g 



Magneto-electricity, Faraday's discoveries in 338 



Makaroff , Admiral, on the ' ' Yermak ' ' ice breaker 449-459 



Malaria, mosquito as intermediate host of (145 671 



Surgeon-General Sternberg on »i45-<}56 



transmitted through the blood 648 



Malay Archipelago, collections from 52 



Malet, M., ballooning by 189 



Malus, researches in light by 322 



Mammals, geological age of 297 



Man, age of, on the earth 304 



antiquity and origin of 279 



Manganin, invention of alloy 413 



Manson's investigation of malaria and mosquitoes 654 



Marine invertebrates, collections received 53 



Mars, a message from 169, 171 



atmosphere of - 158 



canals of l*'-^. 166 



clouds on - - l^O 



discovery of satellites of 1-12 



distance of, from earth 163 



nature of surface of I'lS 



notes on, by Sir Robert Ball 157-166 



possibilitv of life on 165 



seasons on ^""^ 



size of - 1^^ 



water on ^'^^^'O 



Marsh collection of fossils -•*' ^"^ 



Marsh, George P., print collection of - 1^ 



Marx, George, spider collection of ^^ 



Mascart, electrical researches by "^^^ 



Mason, L. 0., autograph letters from •^- 



Mason, Max, experiments by ; 



Mason, Otis T. , on Porto Rican antiquities •_ 



paper by..--.. ^^y., 



Mastodon, discovery of hau- ot ^^^ 



restoration of '_" 



Materia medica, progress in - ^,^_ 



Mathematical analysis, achievements of ^^ 



Mathematics, progress in ^^^^ 



Maunder, Walter, study of Mars by .^„ 



Maxwell, Clerk, on nature of light .^^^' j.'_ 



Maya language, dictionary of " :^.,^^ 



Mayer, Robert, physical researches by ;,"^ 



McAdie, Alexander, kite observations by --^, 



McClure's Arctic explorations ^.^ j.., ~^ 



McGee, W J, ethnological researches by ".^^.^ 



geological studies by ,^^ ^ 



on area of sediments 



