39 
rising on the 30th April reached its highest flow on the 
23rd May, when it was 24°49 cubic feet per minute 
below the ‘‘ Rose and Crown”’ at Coulsdon, and ceased 
to flow on the 18th June. The flow out of the Bourne 
culvert at Croydon on the 23rd May was 341°3 cubic 
feet per minute. This Bourne only flowed a short 
distance down the Caterham Valley and disappeared 
into the ground. 
The year 1879 was a wet and cold year, very 
disastrous to agricultural interests. A Bourne rose in 
the Bourne channel below the ‘‘ Rose and Crown” at 
Coulsdon on the 16th February, and commenced to 
flow on the 17th, and on the 18th was flowing at the 
rate of 3°16 cubic feet per minute, which increased to 
119°44 cubic feet per minute on the 2nd April, after 
which it fell and rose again to 170°62 cubic feet per 
minute on the 25th August; it again fell, and rose to 
222-12 cubic feet per minute on the 25th September, 
and ceased to flow on the 18th December. The largest 
quantity of water flowing out of the Bourne culvert at 
Croydon was 420°4 cubic feet per minute on the 
9th April. 
In the year 1880 there was no flow of the Bourne 
at the usual period when the Bourne flow ordinarily 
takes place in the spring of the year, but the Bourne 
rose below the ‘‘ Rose and Crown,”’ Coulsdon, on the 
12th December, or very nearly at the same period of 
year on which in the preceding year it ceased to flow. 
On the 15th December it was flowing at the rate of 
546 cubic feet per minute. It reached its maximum 
flow below the ‘‘ Rose and Crown,” Coulsdon on the 
24th March, 1881, when it was flowing at the rate of 
642 cubic feet per minute, and disappeared on the 
25th June, 1881, the. last gauging on the 22nd June 
Bourne of 
1879. 
Bourne of 
1880 
Gaugings 
1880 Bourne 
