108 Mr. J. Hogg and Sig. Tenore on the comparative Influence 



sooner at Naples by above seven weeks, at Paris from two to 

 three weeks earlier, and at Upsal by about Jive weeks later % 

 than it is wont to do in England. 



But in computing more exactly the times of this cycle of 

 vegetation, little reliance only can be placed on the notices 

 with regard to Upsal and Paris, for Linnaeus seems to have 

 made his observations in one single year, and d'Audibert has 

 fixed no precise days of the given months ; and moreover they 

 have both neglected to state the number of days which vary 

 in the blossoming of these plants, according to the tempera- 

 ture of the weather in early or late years. On the contrary, 

 the dates given by White and Markwick are the earliest and 

 latest times of flowering for a great many years ; and the mean 

 of these having been calculated, will establish as accurately as 

 possible the true date for the return of this period of vegeta- 

 tion in England in every ordinary season.] 



IV. Friictescence. 



At the time in which the fruits spontaneously fall, or are 

 easily plucked, off the mother plant, begins that period of ve- 

 getation which we distinguish by the name of fructescence 

 (fructescentia) ; to this we may apply the same observations 

 that have been made in the preceding articles upon the varia- 

 tions which the influence of the climates, of the seasons, and 

 of the atmosphere exerts upon the different periods of vege- 

 tation. Therefore with us (at Naples) the ripeness of fruits 

 is about 20 days earlier or later, according as the spring and 

 summer have been hotter and more rainv, or drier and more 

 temperate. 



Linnaeus has observed that barley and wheat ripen on the 

 4th of August at Upsal. Near Naples these sorts of corn are 

 reaped in June in Terra di Lavoro and in Puglia ; and in 

 July in Abruzzo. 



[Owing to the proportionably greater heat that is prevalent 

 in the summer in Sweden, and to the more speedy vegetation 

 than in England, the wheat harvest will be found from the 

 annexed view not to be any earlier with us than at Upsal, 

 but to begin at the same time ; and barley to ripen ten days 

 later with us than in Sweden. 



Harvest 



begins. 



Upsal. 



Wheat . 

 Barley . 

 Oats.... 



Aug. 4 

 Aug. 4 



Naples. 



June 

 June 



White at Selborne. 



Earliest. Latest. Mean 



July 21 

 Aug. I. 

 Aug. 1. 



Aug. 23 

 Aug. 26 

 Aug. 16 



Markwick at Catsfield. 



Earliest. Latest. Mean 



En- 

 gland. 



Aug. 6July II. Aug.26Aug. 3 Aug. 4 

 Aug. 13| July 27. Sept. 4 Aug.15 Aug.14 

 Aug. 8'July 26, Aug. 19 Aug. 7 Aug. 8] 



