CLIMATE. 37 



and June of 1833. Absences from home, in each year, 

 interrupted the regularity after the middle of May. The 

 Rev. G. Gordon favoured me with a similar register for 

 Elgin and adjacent country, during 1833; and also pro- 

 cured others kept in Nairnshire by Mr. Brichan, in Elgin- 

 shire by Mr. Wilson of Alves, and in StrathpefFer, 

 Ross-shire, by Mr. Gillan. Messrs. Woodward, jun., of 

 Norwich, kindly furnished me with copies of very com- 

 plete similar registers for Norwich and East Dereham, 

 Norfolk, in 1 834. But it is not to be supposed that any 

 observer, however attentive, sees the first open flower of 

 each species, and a reader needs scarcely be reminded 

 that days must occasionally intervene without the proper 

 opportunity for observation. 



Unfortunately, many of the species noted are only 

 found in one or other of the different lists, the common 

 plants of one district often being the rare or absent in 

 another. The general results or mean differences, as 

 shown by comparing these lists together, make a step 

 towards the object in view; but so great are the differ, 

 ences of time between the flowering of some of the species, 

 that the means cannot be at all relied on as precise. They 

 are the following : — 



Barnstaple earlier than Nairnshire by 12 days. 



Elgin (Gordon) - 17£ — 



Elgin (Wilson) - 17£ — 



StrathpefFer - - 30 — 



Keswick earlier than Nairnshire - - 6 — 



Ditton earlier than Norwich - 0£ — 



E. Dereham - - 2£ — 



By observations on the mountains of Cumberland in 

 May and June of 1832, 1 concluded, that at a mean height 

 of 2000 feet the flowering of spring plants was about two 

 months later than near the sea level at Barnstaple ; and 

 also, that the combined influence of increased elevation 



