124 Toaldo's Sjrflem 



good weather may he expected ; but if they are dull, and not 

 •clearly marked on the edges, it is a tign tli.it had weather 

 will nfue. When the weather remains unchanged on the 

 fourth, fifth and fixth day of the moon, we may conjecture 

 that it will continue fo till full moon, even fometimes till the 

 next new moon ; and in that cafe the lunar fituations have 

 only a very weak effect. Many obfervers of nature have 

 alfo remarked, that the approach of the lunar fituations is 

 fomewhat critical for the fick. 



Conjectures on the Periods of Rain. 



The rifing and fetting of the moon, as well as its fuperior 

 and inferior paffage of the meridian, may ferve as a rule for 

 foretelling the times of rain. M. Toaldo calls thefe fitua- 

 tions the moon's angles. 



The times moft expofed to rain are the rifing and fetting; 

 thofe moll favourable to good weather, the paffage of the 

 meridian. It has been remarked that, during rainy days, 

 bad weather is always a little interrupted about the time 

 when the moon panes the meridian. We mutt, however, 

 make an exception to this rule as often as the angle of the 

 moon does not coincide with that of the fun. As thefe ob- 

 fervations may be very eafily made, by means of agronomical 

 tables, in which the angles of the moon and fun are marked, 

 they are exceedingly well calculated to prove the truth of 

 this fyftem. No one, for inftance, will refufe affent to it, 

 when the daily changes correfpond with the angles of the 

 moon ; and when, independently of the effects of the moon's 

 fituation, the horizontal effect of the moon at rifing and 

 fetting is different from that produced by its paffage over the 

 meridian. 



It rains oftener in the day time than in the night, and 

 oftenei in the evening than in the morning. 



Influence of the Moon in regard to extraordinary Years. 



Bad years take place when the apfiues of the moon fall in 



the 



