Mr. WINCH's Observations on his Flora.
137
OBSERVATIONS ON THE PRECEDING FLORA.
READ JUNE 20, 1831.
In collecting the materials for the preceding Catalogue Raisonné of the Flora of Northumberland and Durham no merit can be claimed, but such as is due to some degree of patience and perseverance, which, in a favourite pursuit, may be considered very trivial indeed. However, it is the result of more than thirty years' attention to our native Botany, and may prove useful to those who shall have leisure and inclination to follow up and extend these researches. The indigenous plants of this portion of England are numerous, considering its northern latitude,[1]
- ↑ I am indebted to the kindness of Mr. Losh for allowing me to extract the data on which the following table of the temperature of the atmosphere in lat. 55°, is founded, from
a meteorological register kept by him at Jesmond, for several years past. The height of the thermometer was noted each day at 9, 2, and 1 1 o'clock, so that the result is drawn from upwards of 2,500 observations. The elevation of Jesmond is about 200 feet above the level of the sea ; and it is distant from the coast between seven and eight miles :—
1812. 1813. 1814. 1815. 1816. 1817. 1818. January 36½ 36¾ 28½ 33½ 37½ 40½ 38 February 40¾ 43¼ 35¾ 43 36 44 32 March 37½ 45 38½ 43½ 37½ 41½ 38½ April 42 47 50¼ 46½ 41 46½ 42 May 51 52¾ 47¾ 53½ 48¾ 49 51 June 56¾ 56½ 53 57¼ 54¾ 57¾ 62¼ July 57¾ 60¾ 60½ 58 56¼ 57¼ 63 August 58 58 60¼ 59 56¾ 55¾ 58 September 55¾ 56¼ 56¼ 56½ 52 55¼ 55½ October 49 47 48 50¼ 44 44 53¼ November 42 40 41¾ 43 39¼ 45¾ 48¾ December 37 39¾ 38½ 33 36¾ 35 40¾ 47 48 7/12 46 7/12 48 1/12 45 1/24 47 7/12 49 1/2 Average temperature of seven years, 47 29/48 degrees,
VOL. II, n n
