538 Remarks upon the Winter of 1829-30, 
plants, one of which flowered red, and the other six white, 
tinged more or less with light pink, and having a bright pink 
eye. I wish I could persuade some of your correspondents 
to try similar experiments, in different parts of the kingdom, 
upon any of the various plants which approach each other so 
nearly as to leave it still a matter of doubt whether they ought 
to be considered distinct species or mere varieties of the same. 
I have some of them under trial, and propose sending you 
the results from time to time; but, as accidents are unavoid- 
able, it would be more satisfactory to see them confirmed from 
different quarters. 
ITremain, Sir, &c. 
Cambridge, September 17. 1830. J. S. HENstow. 
Art. XII. Some Remarks upon the late Winter of 1829-30, and 
upon the general Character of the Weather which preceded and 
followed it. By the Rev. Leonarp Jenyns, M.A. F.L.S. 
Tue late winter having been more severe than what is 
usually experienced in this climate, it may not be without in- 
terest, or without some benefit to the science of meteorology, 
to record a few particulars connected with its commencement 
and duration. 
In the first place, it is worthy of observation that it was 
preceded by a remarkably wet and cold summer.* What the 
exact quantity of rain was which fell in the course of that sea- 
son, I am not prepared to say, not having made any regular 
measurement of it ; but, from other memoranda which I pre- 
served, it appears that at Swaffham Bulbeck, in Cambridge- 
shire, the number of wet days which occurred in the months 
of June, July, August, and September, 1829, was 14, 20, 19, 
and 14 respectively. ‘The mean temperature, calculated from 
the observations made, in most instances daily, at the hours 
of 9 a.m. and 8} p.m., was, for June 60°4°, for July 60°7°, for 
August 58°2°, and for September 53°4°. 
It will be remembered that the summer of 1828 was like- 
wise characterised by the great quantity of rain which fell at 
intervals more or less throughout the season; but in that in- 
stance the bad weather was observed to clear off in a great mea- 
* This fact is very much in accordance with some observations by Mr. 
White, who, in his History of Selborne, mentions two or three instances of 
long and severe frosts which set in after very rainy seasons. (See his 62d 
Letter to the Hon, Daines Barrington.) 
