6l8 PHILOSOPHICAL TRANSACTIONS. [anNO 1742. 



published already in Philos. Trans. N" 418. The Naples Diary, by Dr. Cyril- 

 lus, ends in the year 1732, and also that from New-England by Mr. Dudley. 



For the year 1734, that from Dr. Pack, at Canterbury, exhibits at one 

 view, by a table for every month of the year, in the first column, the quantity 

 of rain, and the evaporation : in the 2d, 3d, and 4th, the greatest and least 

 and middle heights of the barometer, thermometer, and hygrometer : in the 

 5th, the meteors, by variety of marks : in the 6th, the direction and strength 

 of the winds. He gives also a description of the instruments he invented, and 

 made use of, for observing the quantity of rain and evaporation, and the hygro- 

 meter, with a draught of each. For the month of January, there is a particular 

 table, containing great variety of observations for every day of that month. 

 There is a letter of his, relating to a chart of the levels of Kent, which, he 

 thinks, are so contrived as to cause a circulation of air from the sea, which is 

 of great use. Mr. Forth's Diary, at large, from Darlington, begins in the 

 year 1737 ; but he has given an abstract for the 3 preceding years: in which 

 the greatest, least, and middle height of the barometer is given for every 

 month. By a letter of his it appears, that his thermometer stands at 45° 

 when Mr. Hauksbee's stands at 33, which is J 2 difference ; and I suppose he 

 means they differ so much throughout the scale ; so by that rule are his obser- 

 vations reduced to the table. Quere, at what time of the day the observations 

 were made, and where the thermometer was placed ; for the mean heights 

 differ but little from those at London, as he observes in his letter. There is 

 an extract of a letter from Signer Didacus de Revillas to Dr. Mortimer, con- 

 taining an account of the rain that fell at Rome, beginning with August 1734, 

 and ending with July 1735, in Paris measure. 



Marquis Poleni's diaries at large, from Padua, end in the year 1730 ; but he ^ 

 sent an abstract of his observations for the 6 following years, which was pub- 

 lished in the Philos. Trans. N° 448. 



These are all the manuscript observations communicated to the Royal Society, 

 relating to meteorological observations. Mr. H. has added the observations of 

 the barometer, thermometer, and rain, at Edinburgh, from the 4 volumes of 

 Medical Essays ; and Mr. Doppelmaier's Barometrical Observations, from the 

 printed ones at Norimberg, to make the tables as general as he could.* 



* For want of knowing the particular heights and situations of the different places of observation, 

 as well as the width and forms of the barometers, and the other instruments, which were then not 

 accurately made; the tables cannot be depended on for any useful purposes; and they are therefore 

 here omitted. 



