820 INDEX. 



Page. 



Mason, Otis Tufton, on influence of environment on human industries 639 



paper by 85 



Mathematics, early classification of 731 



English 732 



usefulness of 739 



Mattern, F. H., donation to Zoological Park 71 



Matthews, Dr., cited 584 



Mauger, Harry, donation to Zoological Park , 71 



Mauritius, exchange transmissions with 65 



Maxim, Hiram S., Hodgkins medal awarded to 14 



Maxwell, Clerk, cited 138 



Maya architecture 548, 552 



pyramids 551 



ruins 541, 542 



stone houses, construction of 550 



Mayer, A. M., on color phenomena 133 



Measles, causes and prevention of 278, 331 



spreading of 267, 272, 276 



Mechanical ventilation of schools 301 



Medal, Hodgkins, design for 16 



Medals, Hodgkins, award of 14 



Medical knowledge in early England 736 



laboratories, history of 500 



sciences, rapid development of 502 



Medicine, progress in study of 501 



Meldola, Professor, quoted 475 



Menche" Tenamit, ruins of 542 



Mendenhall, T. C, biography of Helmholtz by 787 



on fundamental units of measure 84 



Mental and bodily health affected by impure air 290 



physical qualities influenced by climate 279 



in relation to climate 283 



Merkel, S., cited 397,412 



Merriam, Dr. C. Hart, cited 642, 646 



Merrill, George P., cited 192 



directions for collecting rocks 40 



on onyx marbles 86 



Merritt's experiments with bolometer 130 



Metaphysical society 779 



Meteorites, estimated number of 198 



Meteorological knowledge in early England 734 



observations with balloons , 336 



station, the highest 84 



tables, revised edition of 8 



Meteors and aerolites, origin of 312 



set on fire by air 308 



Metric unit of length 118 



Mexico, exchange transmissions with 65, 66, 67 



Meyer, G., cited 152 



Meyer, Victor, quoted 475 



Meyerson, Col. Max, donation to Zoological Park 72 



Miasmatic diseases, mode of attack of 284 



Michelson on light waves 118 



Micklucho-Maclay, cited 521 



on Easter Islanders 528 



