INTRODUCTION. 



The meteorological observations made at the Ben Nevis Observatory and at the Public 

 School, Fort- William, from the opening of the Observatory in 1883 to the end of 1887, 

 have already been published in the Transactions of the Royal Society of Edinburgh, 

 Vol. xxxiv., along with a preliminary discussion of some of the results deduced from 

 them. The observations recorded in this volume comprise those made at the Ben Nevis 

 Observatory from 1st January 1888 to 31st December 1892, at the Public School, 

 Fort- William, from 1st January 1888 to 31st December 1890, and at the Fort- William 

 Observatory from 1st August 1890 to 31st December 1892. They are given in monthly 

 tables for each Station. 



The tables for 1888 consist of (1st) the Ben Nevis Observatory records of the hourly 

 readings of Barometer, Dry and Wet Bulb Thermometers, Rainfall, Sunshine, Direction 

 and Force of Wind and Amount of Cloud ; (2nd) the observations at the Public School, 

 Fort- William, of similar data made five times a day ; (3rd) monthly and annual mean 

 hourly values of the Barometer, Temperature, Wind and Sunshine at Ben Nevis 

 Observatory ; (4th) the Ben Nevis Observatory Log-Book for the year. The tables 

 for 1889 are similar to those for 1888. The tables for 1890 of the Ben Nevis 

 Observatory are similar up to 31st July, but from 1st August to 31st December the 

 Fort- William Observatory hourly records are printed side by side with those of the 

 Ben Nevis Observatory ; the readings at the Public School, Fort- William, the monthly 

 and annual means and the Log-Book being given as before. The tables for 1891 

 consist of the hourly records of the Barometer, Dry and Wet Bulb Thermometers, 

 Rainfall and Sunshine at the Ben Nevis and Fort-William Observatories placed side by 

 side, followed by tables of Wind and Cloud at Ben Nevis Observatory, of Temperature 

 in a Stevenson Screen, Radiation Temperatures, and Amount of Cloud at Fort-William 

 Observatory, the monthly and annual mean hourly values at the two Observatories, 

 and the Log-Book. The tables for 1892 are similar to those for 1891. 



Throughout this volume all times given are Greenwich Mean Time, except in the 

 case of the Sunshine records at Ben Nevis Observatory, which are counted in Green- 

 wich Mean Time up to 31st December 1890 but thereafter in Local Mean Time, and 

 the Sunshine records at Fort-William Observatory, which are in Local Mean Time 



ROY. SOC. TRANS. EDIN. — VOL. XLII. A 



