88 Calendar of Nature for London. 



Meteorology. — Mean temperature of the month degrees, by Fah- 



renheit*s scale ; greatest variation from the mean, ° ; greatest heat, 



° J greatest cold, ° ; mean height of the barometer, ; 



greatest variation from the mean, °; greatest height, °j lowest 



extreme, °; number of fair days, ; number of rainy days, ; 



number of snowy days, j quantity of rain, snow, &c. inches ; 



prevailing winds from the , and j temperature of main-spring 



water °. 



Observations. — 



The Calendar for the remaining months will be given in the next Number. 



Art. VII. Calendar of Nature for London* 



The object of this calendar is partly as a record of facts for future use 

 and gratification, and partly as a standard of climate, weather, and natural 

 appearances, with which naturalists in different parts of the country may 

 compare their own situations. The objects shall not be numerous, and we 

 shall in future always commence with those contained in the corresponding 

 months of the Perennial Calendar (p. 87.) — Cond. 



A generally mild autumn was succeeded by an equally mild and uncon- 

 firmed winter. Several of our early song birds, as the thrush, the hedge- 

 sparrow, and common wren, were frequently heard before the first of 

 January. Before this day, too, natural primroses appeared in Covent 

 Garden Market. The new year was ushered in by wet yet warm weather ; 

 wind generally from S.S.W., and occasionally veering to theW. andN.W., 

 at which times the clouds cleared off, and night frosts followed. Snow 

 fell on the 5th ; on the 1 1 th a heavy fall, with an east wind j also on the 

 16th, but which did not lie. 



The equinoctial gales set in on the 18th of March, and continued mo- 

 derately till the 25th, when the weather became more settled. The dust 

 flew in London streets on the 4th of the same month, when the water- 

 carts were in requisition. A blue mist on the 1 5th of March, and several 

 misty mornings about the same time. 



In the gardens, early flowers soon showed themselves j viz., hellebore, 

 aconite, groundsel, snowdrops, &c. &c. The almond came in flower on 

 the 3d of March, and gooseberries on the 18th. 



First summer birds, the chiff-chaff and black-cap, arrived about the 8th, 

 the nightingale, willow-wren, redstart, and lesser field-lark about the 14th. 



The lowest temperature by Fahrenheit was on the morning of the 26th 

 of March, when the mercury indicated 25° at 7 A.M. ; the highest point 

 was 52°, on the morning of the 12th instant at the same hour. 



On the whole, the season thus far has been a changeable though 

 • moderate one, and the year promises to be a favourable one for the fruits 

 of the earth. — J. M April 20. 



Art. VIII. Indicatorial Calendar. 



Under this article it is not our intention to point out all the remarkable 

 natural occurrences which may be expected in the ensuing two months, but 

 merely a few of the leading features, in order to direct to them the attention 

 of young observers of nature. — Cond. 



The weather during May and June is usually the most pleasant of the 

 whole year ; the air is peculiarly soft and refreshing, being scented with the 



