|66 PHILOSOPHICAL THANSACTIONS. [aNNO 1738. 



the winds also, with their strength, and the weather, and quantity of rain, in 

 cubes and lines, but at the end of each quarter the depth is given in Paris inches 

 and lines. The thermometer is Mr. Hauksbee's. There are some astronomi- 

 cal observations of eclipses, &c. He takes notice, that an occultation of Venus 

 by the moon, observed with a telescope of 18 feet, may serve to prove the 

 moon to have an atmosphere ; for being then in the quadrature with the sun, 

 the planet appeared to lose its cusps, and become oval, when it came near the 

 moon. 



That from Padua, by the Marquis Poleni, shows the height of the barometer 

 once a day, o. s. in English inches and decimals ; the winds, and sometimes 

 their strength, and weather. The depth of rain is given both for the old 

 and new style. 



That from Bengal, by Mr. Bellamy, preacher to the factory, has the height 

 of the thermometer twice a day, morning and evening ; the winds, with their 

 strength, and the weather, for the year 1730. The medium of the thermo- 

 meter is taken from both the evening and morning heights, the difference there 

 being very great in proportion between morning and evening. 



That from Boston in New-England, by Paul Dudley, Esq. F. R. S. shows 

 the weather 3 times a day, and wind once or twice. No barometer or ther- 

 mometer. 



The Abo observations for the year 1730, by Mr. D. Sporing, show the height 

 of the barometer twifce a day, in Swedish inches and decimals, but the mean 

 heights are reduced to English in the tables. They show also the winds and 

 weather, and in the last column the aurora boreales, which are frequent in most 

 months of the year. 



That from Naples, by Cyrillus, shows the height of the thermometer, which 

 is Mr. Hauksbee's, once a day. The winds, with their strength, and weather, 

 and depth of rain in Neapolitan measures, 23 of which make a London inch. 

 The barometrical heights he has not set down, because he found them not to 

 agree with those of former years, which made him suspect his instrument to be 

 out of order ; but as it appears he had removed his habitation, it might be 

 owing to its being situated higher or lower than the former. An eruption of 

 Vesuvius happening, an account is given of it, and of damage done by light- 

 ning, and also of the seasons, as to fruitfulness and healthiness. 



First, he observed on the barometrical tables of these two years, that they con- 

 firm former remarks made by Dr. Derham and others, of the consent of the 

 barometers in places at a good distance from each other. Not only the monthly 

 mean heights agree in the three diaries of these two years here in England, but 

 also the greatest ascent and descent of the mercury happen commonly on the 



