On the Rain and Drainage - Waters at Rothamstcd. 247 
Greenwich rainfall, as given by Mr. W. C. Nash in Symons' 
'British Rainfall, 1879.' In the following Table these rainfall- 
records are compared with the results shown by the large gauge 
at Rothamsted * : — 
Table III. — The Average Monthly and Annual Eainfall ohserved 
at Eight Stations during 27 Years, 1853-79. 
Within High RainfiUl district. 
Without Higli Rainfall district. 
Rotham- 
sted, 
Herts. 
St. Al- 
bans, 
Herts. 
Heme! 
Hemp- 
stead, 
Herts. 
Hitchin, 
Herts. 
Kovston, 
Herts. 
Carding- 
ton, Beds. 
Stretham, 
Ely, 
Camb. 
Green- 
wich, 
Kent. 
January .. 
February .. 
March 
inches. 
2-67 
1-69 
1-71 
Inches. 
2-69 
1-67 
1-81 
Inches. 
2-61 
1-66 
1-74 
Inches. 
2 15 
1-50 
1-50 
Inches. 
2-07 
1-49 
1-52 
Inches. 
1-83 
1-30 
1-33 
Inches. 
1-42 
1-03 
1-20 
Inches. 
2-18 
1-37 
1-47 
April 
May . . 
June .. 
July .. 
August 
September . 
October 
November .. 
December .. 
2-00 
2-39 
2-47 
2-61 
2-70 
2-52 
2-98 
2-32 
2-03 
1- 91 
2- 36 
2-37 
2-52 
2-63 
2-54 
2-84 
2-32 
2-13 
1- 86 
2- 26 
2-35 
2-44 
2-53 
2-53 
2-76 
2-24 
2-08 
1- 70 
2- 08 
2-06 
2-52 
2-49 
2-23 
2 51 
2-13 
1-79 
1- 59 
2- 04 
1- 91 
2- 14 
2-41 
2-19 
2-31 
2-07 
1-78 
1-51 
1- 85 
206 
2- 19 
2-37 
209 
2-17 
1-82 
1-53 
1-38 
1-79 
1- 97 
2- 49 
2-41 
2-05 
2-00 
1-87 
1-33 
1- 68 
2- 16 
2-16 
2-38 
2-43 
2-27 
2-67 
2-03 
1-87 
28-09 
27-79 
27-06 
24-66 
23-52 
22-05 
20-94 
24-67 
The smallest fall of rain occurs in all cases in February and 
March ; from this point there is at Rothamsted a steady 
increase up to July and August ; there is then a slight decrease 
in September, and the maximum rainfall of the year is reached 
in October : after this there is a rapid fall to December, fol- 
lowed by a considerable rise in January. The records at 
St. Albans and Hemel Hempstead agree excellently with those 
at Rothamsted, the latter station having, however, a somewhat 
greater summer rainfall. 
With Hitchin, Royston, Cardington, and Stretham, which 
* The records of the large gauge at Rothamsted do not compare exactly with 
those of the smaller gauges of other stations ; while, however, the records of the 
large gauge are comparatively ratlier liigli, those of our 5-inch funnel gauge are 
in the other direction. The excess of the large gauge over ordinary gauges is 
probably about 1 inch per annum. The rain-gauges employed at the various 
stations named are as under : — 
Height above ground. 
Rothamsted, size of gauges . . 
St. Albans, diameter of gauge 
Hemel Hempstead 
Hitchin 
Royston 
(Jardington 
Stretham, Ely 
Greenwich 
87 X 72 in. 
6 in. 
12 „ 
12 
9 
8 
1 and 2 ft. 
2 ft. 0 in. 
Height above sea. 
. 420 ft. 
237 I 
.. 238 „ 
.. 269 ., 
.. 109 „ 
155 I 
