BIOGRAPHICAL INDEX 557 



acid and alkali, 394 ; sulphur from marcasite or 

 pyrites, 14, 162 



MENDELEEFF, DMITRIJ IWANOWITSCH, b. 1839, Tobolsk, 

 Siberia ; d. 1907, St. Petersburg. Professor of Chemistry at 

 St. Petersburg 



1869. On periodicity, 458 ; unknown elements, 458 

 1871. The periodic law, 459 ; typical elements, 460 ; series or 

 short periods, 460 ; odd and even series, 460 ; transi- 

 tion series, 461 ; long periods, 461 ; periodicity of 

 valency, 468 ; atomic weights of Be, 474, In, (Jr, 

 475, Au, 476 ; specific heat of indium, 475 ; missing 

 elements, 476, 478 ; eka-boron, eka-aluminium, eka- 

 silicon, 477, 4/8 ; horizontal and diagonal relation- 

 ships, 479 

 MEYER, JOHANN FRIEDRICH (1705-1765) 



1764. Sulphuretted hydrogen inflammable, 171 

 MEYER, LOTHAR (1830-1895) 

 1864. Valency, 434 



1869. On periodicity, 458 ; periodicity of valency, 468 ; atomic 

 volume curve, 469 ; atomic weight of indium, 475 ; 

 and uranium, 475 

 MEYER, VICTOR (1848-1897) 



1879-89. Vapour density of Zn, KI, Cu 2 Cl 2 , ZnCl 2 , Sn.,C] 4 , 



' 361 



MiTSCHERLlCH, ElLHARD (1794-1863). Pupil of Berzelius ; 

 Professor of Chemistry at Berlin 



1819. Isomorphism of arsenates and phosphates, 368 

 1821. Isomorphism of sulphates of Ca, Mg, Mn, Fe, Cu, Zn, 

 Co, Ni, and of spinels containing Cr, Mn, Fe, Al, 

 372 



1828. Isomorphism of sulphates and selenates, 371 

 1832. Isomorphism of potassium permanganate and per- 

 chlorate, of potassium manganate with the chromate, 

 sulphate, and selenate, 371 

 MOISSAN, HENRI (1852-1907) 



1886. Isolation of fluorine, 252 



MOND, LUDWIG. Vapour-chemistry of nickel carbonyl, 361 

 MONGE, GASPARD (1764-1818) 



1781. Combination of hydrogen and oxygen, 120 

 MORLEY, E. W. 



1895. Densities of hydrogen and oxygen ; combining volumes 

 of hydrogen and oxygen, 334 ; composition of water, 

 128-133 



MoSELEY, H. G. J. High-frequency spectra of the elements, 

 487 



