INDEX 615 



N. 

 Neuhoff , Otto, adiabatic changes of moist air 430-494 



0. 

 Optics, optical system of atmosphere '. 46 



P. 



Paths of moving particles (Sprung) 57 _ 79 



Pendulum motions, air resistance to 9 



Pockels F., formation of precipitation on mountain slopes 80-104 



movement of air in stationary anticyclones 596-610 



Poisson, S. D., motion of projectiles in the air 8-15 



Polar limits of trade winds, pressure at 31 



Pole, North, direction of air currents at 67 



Potential temperature and entropy (Bauer) 495-500 



Precipitation on mountain slopes (Pockels) 80-104 



Pressure, at polar limits of trade winds 33 



difference of maintenance by heat 520 



distribution of 366, 502 



mean 125 



mechanical equivalent of (Margules) 501-532 



relation to work 514 



surface distribution of (Gold) 113-121 



variation with height 125 



virtual temperature and 123 



Projectiles, motion of (Poisson) 8-15 



Pseudo-adiabats of moist air 454 



R. 



Radiation and insolation, variations in 399 



Rain, formation on mountain slopes (Pockels) 80-104 



Rays, zenith point of (Kerber) 51 



Resistance of air, influence of on projectiles 8 



Rotary action of storms (Tracy) 16-22 



Rotation of earth, diurnal, influence of 23-30, 10^-110 



influence on atmospheric disturbances (Braschmann) , 23 



influence on projectiles (Poisson) 8 



influence on vertical currents 243 



S. 



Saturation point of air 436 



Snow formation on mountain slopes 80-104 



Sounding-balloons 2, 285, 326 



Sprung, A., paths of moving particles 57~79 



Steady motions of earth's atmosphere (Erman) 3 I_ 4 2 



Storms, energy of (Margules) 533~595 



origin of 54* 



rotary action of (Tracy) 16-22 



thunder, formation of 249, 262 



