METEOROLOGY. 431 



Ko. of paragraph. 

 Tliermometer — Continued. 



Solar radiations, black bulb in vacuo 117 



Errors and improvements 112-119 



For water temperatures 120 



Thermodynamics, graphic solutions of problems 266 



Thibet, climate of 79 



Thollon, L. , atmospheric spectrum lines 37I 



Thomson, Prof. J. , studies on whirlwinds 311 



Thunder, measurement of — 152 



Thunder-storms : 



Study of 294 1 



In Bavaria 294 



In Italy 291 



Thundor-squalls in United States 3 



Tillo, A. L. von, magnetic charts for Russia 348 



Tissaudier, twilights of past years 396 



Topfer, Professor, rainfall in Germany 218 



Tornadoes : 



Generation of 3 



Relation to cyclones 3 



At Oakville 3 



Tripe, Dr. J. W., meteorology and health 13 



Tromholt, Prof. S. : 



Aurora at Godthaab 362 



Aurora observers reporting to him 362 



Observations and experiments in Finmark, Iceland, Norway , 304-367 



Trowbridge, Prof. J., author of elementary test-book on physics 72 



Twilight : 



Ordinary 380-384 



Extraordinary 382,387-404 



Twilight dust, height of 380, 384, 393-403 



Typical weather phenomena 320 



Upton, Prof. W. : 



Temperature distribution in United States 194 



Meteorology of eclipse expedition 236 



* Hypsometric formula 419 



Valentine, L., proprietor of Houghton farm - 45 



Verification of rain-band prediction 377 



Verbeek, R. D. M., report on Krakatoa .•. 391 



Vettin, Dr., experiments in aerodynamics 263 



Vogol, Dr. H, C, actinometric methods 182 



Waldo, F. : 



Meteorological education 90, 91 



Barometer comparisons 137 



Walker, Gen. J. T., Krakatoa wave observed in India 407 



Weather areas : 



Movement of ^ 3 



Charts, America and Europe 22 



Review, monthly, Italian 23 



Reports, transatlantic 95, 96 



Weather predictions : 



Local, 45,93 



Rain-band "^77 



Long range - — r----- 94 



