INDEX. 



Air, Diathermancy of, 11. 



Viscosity of, in relation to wind, 28. 



Aitken, John, on dust, fogs and clouds, 17. 



Alps, Wind in valleys in, 27. 



Annual phenomena, 35. 



Antarctic regions, Snow, rainfall, and icebergs in, 73. 



Anticyclones, Air in, 20. 



High pressure, Areas of, in oceans, 20. 



Permanent, over oceans, 20. 



— — Of Europe, with regard to thunder, 33. 



"Wind out of, 50. 



Anticy clonic regions, 72. 



Pressure in, 20. 



Winds adjoining, 60. 



Atmosphere, Cloud in a saturated, 29. 



Heating by sun's rays, 19. 



Over open sea, 16. 



Tension of vapour in, 19. 



Transference of portions of, in December, 69. 



Atmospheric pressure of year, Mean, 72. 



Temperature for year, Mean, 72. 



Aurora, 35. 



Baillie's isobaric and current charts of the ocean, 52. 



Isobars for ocean, How used, 37. 



Barometer, Afternoon minimum of, 19. 



Cause of diurnal oscillations of, 16. 



Chart showing diurnal oscillations for July, 21. 



Corrections for gravity for, 42. 



Correction for height of, 40. 



Correction for range of, 36. 



Observations, reduction, 2. 



Oscillations, Diurnal, over sea, 16. 



Barometric diurnal curves, 13, 21, 38. 



Observations, Difficulties in reducing, to sea 



level, 41. 



Eanges for Polar Stations, 24. 



Tides, how generated, 14. 



Beaufort's scale of wind, 2, 25. 



Bergsma, Dr., on rain, 30. 



Breezes, Land and sea, as distributing aqueous vapour, 



10. 

 Brewster, 8. 

 Buchanan, J. Y., 3. 

 Buys Ballot's Law of the Wind, 52. 



Calms between trades, 33. 

 Over oceans, 20. 



Climate, Bearing of land and water surfaces on, 5. 



Changes in, 75. 



Different in reference to cyclonic areas and sun's 



heat, 60. 



Dry and wet, Influence of, on temperature, 72. 



Influence of land and water, mountains and 



plains, on, 47. 

 Cloud, 28. 

 Curve for, Challenger and Batavia, 31. 



Colours of sunset, 17. 



Currents, Atmospheric, in relation to humidity, 22, 27, 



75. 

 Cyclones of Europe with regard to thunderstorms, 



33. 

 Cyclonic areas of low pressure in dry and rainy 



climates, 60. 



December 1878, Eemarkable character of weather, 69. 

 Dew in relation to dust particles, 18. 

 Dust particles, 11, 17. 



Evaporation, 8. 



Fogs, Formation of, 17. 



Friction in relation to wind velocity, 28. 



Geology in relation to Meteorology, 75. 

 Gravity, Correction for Barometer, Table of, 42. 



