426 SCIENTIFIC RECORD FOR 1884. 



Ko. of paragiaph. 

 Neumayer, Dr. George : 



Daily weather charts 22 



Data relative to sunsets 388 



Nordenskiold, A. E., exploration of Greenhmd 42 



Norway, climate of 76 



Oberbeck, Prof. A. , mathematical theory of -winds 261 



Obir, summit of wind force and direction 241 



Observatory, meteorological : 



Falmouth 50 



Magdeburg 18 



Ocean currents affecting climate 440 



Ocean, physics of, Buchanan, J. Y 12 



Oppolzer, T. von , refraction, atmospheric 368 



Optics, Hamilton's general method 369 



Osborne, J. R., subjective climate 78 



Overzier, Dr B., verification of long-range predictions 102 



Palmieri, Prof. L. : 



Atmospheric electricity ~ 336 



Origin of atmospheric electricity 336 



Partsch, Prof. J., climate of Greece 80 



Paul, Prof. H. M., barometric waves 3 



Thermometer exposure 3 



Paulsen, A. , aurora observed aC Godthaab 359 



Pearson, A. M., barometric waves move eastward 267,268 



Penck, snow line as index of climate 441 



Penhallow, Prof. P. P. , meteorologist at Houghton farm 45 



Periodicity in meteorology „ 408-417 



Pernter, Prof. J. M. : 



Climate of the Obir 55 



Diathermancy of aqueous vapor 168 



Total sunshine i 234 



Winds of the Obir ., 241 



Diurnal wind period 241 



Barometric variations at high and low stations 275 



Pettersson, Dr. O. : 



Improved calorimeter 116 



Atlantic Ocean, physics of 172 



Phaenological: 



Constants 13 



Results 421-428 



Phinney, A. J., the Oakville tornadoes 3 



Pizzighelli, G., photography and actinometry 372 



Polar Conference, International 30 



Popular weather sayings 97 



Predictions of: 



Tornadoes .- 3 



Long range 327, 328 



By spectroscopic rain-band 376, 377 



Of tornados 3 



Prestel, principal centers of action 323 



Pschre walski, climate of Thibet 79 



Psychrometer, improvement in 121,122 



Pyrheliomerry. (See Actinometry.) 



Ragona, Professor, evaporation, observations cf 199 



