TRANSACTIONS OP THE SECTIONS. B^ 



trie ranges of the prismatic colours nearly perfect, ranging from violet in the centre 

 to a fourth circle of violet forming the outermost distinct circumference ; faint indi- 

 cations of a fourth circle of red were occasionally visible beyond it. 

 The Irish Sea seen in the distance. 



On the Meteorology of Hull. By William Lawton. 



After describing the instruments used and their situation with regard to the town 

 and surrounding objects, the author referred to the observations themselves, which 

 consist of three separate series. 1st. The observations on temperature of Dr. 

 Fielding, late of Hull, extending from 1831 to 1836 (both inclusive), left in the 

 form of a chart. These have been reduced to their numerical value and placed in a 

 tabulated form. 2nd. Mr. Lawton's observations of a general character, commen- 

 cing with January 1849, and still continued. 3rd. The Literary and Philosophical 

 Society's observations, commencing with 1851, and also continued. 



The following table headed Atmospheric Pressure, represents the mean barometrical 

 observations for each month and for the year. The first three columns are the 

 results of the author's observations taken daily at 9 a.m. and 6 p.m. The first 

 column represents the average highest monthly maxima for the years 1849, 1850, 1851 

 and 1852 ; the second column the average lowest monthly minima ; and the third 

 column the mean monthly height for the same period. 



The fourth and fifth columns give the highest and lowest readings for each month 

 from the Philosophical Society's Register, and the sixth column of the same table 

 the mean of each month for the year 1851, which closely coincide with Mr. Lawton's 

 observations for the same period. The mean height of the barometer for December 

 of that year was the greatest yet registered, being 30*34 ; the Philosophical Society's 

 30'264. By a reference to the third column containing the mean height on the 

 average of four years from 1849 to 1852, it will be perceived the readings are the 

 highest in February, March and September, and lowest in January, October and 

 November. 



The mean heights of each of the four years observed have not varied above "05 of 

 an inch. 



To this table are added the results of four years' observations made at Wakefield 

 by W. R. Milner, Esq., Surgeon, during the same period, and kindly furnished 

 by that gentleman. 



Table L — Atmospheric Pressure. 



January... 

 February 

 March .... 

 April....... 



May 



June 



July 



August .... 

 September 

 October.... 

 November . 

 December . 



1849 to 1852. 



Max. Min. Mean. 



30-51 

 30-62 

 30-61 

 3038 

 30-39 

 30-31 

 30-31 

 30-35 

 30-53 

 30-50 

 30-48 

 30-58 



30-46 



29-37 

 29'34 

 29-48 

 29-47 

 29-64 

 29-76 

 29-61 

 29-65 

 29-37 

 29-22 

 29-16 

 2942 



29-45 



29-98 

 3012 

 30-14 

 29-99 

 3007 

 30-06 

 3004 

 30-02 

 30-14 

 29-96 

 29-94 

 30-07 



30-04 



1851. 



Max. 



30-356 

 30-478 

 30-446 

 30-248 

 30-612 

 30-386 

 30-240 

 30-466 

 30-696 

 30-498 

 30-424 

 30-608 



30-455 



Min. 



29-162 

 29-436 

 28-846 

 29-426 

 29-702 

 29-632 

 29-322 

 29-622 

 29-368 

 29-128 

 29-308 

 29-600 



29-383 



Mean> 



29-740 

 30 018 

 29-713 

 29-904 

 30-064 

 30074 

 29-900 

 30090 

 30-242 

 29-624 

 29-919 

 30-264 



29-963 



Bearing in mind the daily fluctuations or tides of the barometer, which it is stated 

 by Professor Phillips rise at York twice to maxima, about 9 or 10 a.m. and p.m.. 



