342 



MR. J. HEAP ON THE RAIN-FALL AT OLDHAM. 



Table II. — Comparative Rain-fall at Oldham and 

 Manchester. 



Year. 



Manchester. 



Oldham. 



Difference. 







inches. 



inches. 



inches. 



1836. 



45*351 



36'6i9 



- 8-732 



N 



1837. 



33*i37 



31-043 



— 2-094 





1838. 



31-418 



27-445 



- 3'973 





1839. 



33'349 



25-484 



- 7-865 



• 



1840. 



34-291 



32-521 



- 1-770 





1841. 



41-190 



34-646 



- 6-544 





1842. 



3i'555 



28*108 



- 3 '447 



During this period the 



1843. 



38155 



31-130 



- 7-025 



gauge at Oldham was 24 



1844. 



26-755 



18-655 



— 8-100 



' feet above the ground^ 



1845. 



4i'4i5 



41*669 



+ 0-254 



float-gauge 12 inches di- 



1846. 



33-350 



36-252 



+ 2-902 



ameter. 



1847. 



43-355 



34' 132 



- 9*223 





1848. 



45-230 



40-009 



— 5-221 





1849. 



36-070 



35-622 



— 0*448 





1850. 



34-330 



38-893 



+ 4*443 





1851. 



31-930 



28-011 



- 3 919 





1852. 



45730 



33-181 



-12-549 . 



/ 



1853- 



32-410 



34-606 



-f- 2-2l6 





1854. 



31-860 



35*083 



4- 3*223 



Oldham : gauge 1 1 feet 

 y above the ground; float- 



1855. 



26-425 



23-950 



- 2-475 



1856. 



34-220 



32-583 



- 1*637 



guage 10 inches diameter. 



1857. 



31-940 



28-130 



— 3*810 



1858. 



29-434 



32-713 



+ 3*279 



"( Oldham: gauge 11 feet 



1859. 



34-495 



37-318 



+ 2-823 



above the ground; lo-ineh 



i860. 



36-530 



44-023 



+ 7-493 



l gauge, but fall of rain 



1861. 



29-727 



33*084 



+ 3*357 



determined by weight in 



1862. 



38-598 



41-238 



+ 2*640 



1861 and 1862. 



Means . . . 



35-268 



33-202 



— 2-066 



Table III. — Mean Monthly Rain-fall at Oldham. 



Month. 



1836-1852 



1853-1857. 



1858-1862. 



1853-1862. 



January 



February 



March 



April 



May 



Jime 



July 



August 



September 



October 



November 



December 



Sums 



Corresponding periods 

 at Manchester 



inches. 

 2-195 

 1-825 

 2-090 

 2-147 

 2-328 



3*055 

 3*490 



3*493 

 2-88o 

 3*230 



3*399 

 2-336 



inches. 



1*955 

 2-130 



1*509 

 1-740 

 2-305 

 2-379 

 3-476 



3*358 

 1912 



4*637 

 2-075 



3*326 



inches. 



2*537 

 2*029 



3-481 

 2*230 



2-577 

 3-898 

 3-567 

 3*471 

 4*622 

 4-020 



2-222 

 3-415 



inches. 

 2*246 

 2-079 

 2-495 

 1-985 

 2-441 

 3*138 

 3*5*1 

 3*414 

 3*267 



4*328 

 £-148 

 3*370 



32-468 



30-802 



} 36859 



31*371 



38-069 



34*432 



33*757 



32-564 



