112 Mr. George Cor den. 



month, 28764 ins., which is the lowest reading of the year. 

 The difference between the highest and lowest observed 

 readings of the barometer amounted to i"g2 ins. making the 

 extreme range -03 in. less than in 1879. 

 Temperature. 



On three days during the year the maximum temperature in 

 shade exceeded 80°. First on the 26th of May (81 -2°), and 

 then agam on the 3rd and 4th of September (8o"5° and 85-1°), 

 but strange to say at no time during the three summer 

 months. And on as many as 54 different occasions the shade 

 temperature rose to or exceeded 70°, whereas in 1879 this 

 moderately warm summer maximum was attained on only 14 

 days — showing what an extremely cold year this was. On the 

 i8th of January, which was an exceptionally cold month, a 

 remarkably severe frost set in very suddenly, and at the 

 termination of twelve days broke up as suddenly during the 

 night of the 29th, the temperature during this period ranging 

 only from 17° below to 5° above the freezing point. In May 

 the extreme range of temperature was ver}' great, the lowest 

 reading of the month being 30'' (2nd), and the highest 81-2° 

 (26th). The latter temperature which was registered on Derby 

 Day was a remarkably high one for the time of year. In fact 

 at Greenwich Observatory, the maximum reading on this day 

 was higher than any that had been recorded there in any May, 

 for at all events 39 years. June deserves some notice here on 

 account of the unusually low minima temperatures recorded 

 on the morning of the 5th, 35° being registered in the ther- 

 mometer screen, and 27-6° (or 4!^° of frost) on the surface of 

 the lawn. The first few days in September on the other hand 

 were exceptionally hot for the season, the temperature of the 

 air rising on three successive days (2nd, 3rd, and 4th), to 787°, 

 80-5°, and 85-1°, respectively. On 58 nights the mimimum 

 temperature in the screen fell below 32°, and on 136 nights (or 

 19 less than in 1879) frosts were indicated by the thermometer 

 exposed on the grass. The temperature of the soil at a depth 

 of one foot at no time rose higher than 68-2°, and on one 

 occasion (January 29th) fell to within two-tenths of a degree 

 of the freezing point. 



Humidity. 



In January there were unusually dense fogs on three 

 successive days. The first of these occurred on the 27th, and 

 obscured the atmosphere so much that at one time in the early 

 morning objects became invisible at a distance of fifty yards. 

 The next noteworthy fog was that of the 13th of March, 

 which also prevailed throughout the early morning hours. On 

 this occasion, however, objects became completely hidden from 



