2C6 Mr.Farey's Account of the Rivers 



that there is nothing like a general warmth perceivable in 

 the Strata any uhvrie, as those iond of deriving Toadstonc 

 and every thing else tiom subterranean Fire have pretended 

 (see p. 273), it seems more natural to refer the circiim- 

 ^taiice, as far as it is true, to the great depth and narrow- 

 ness of the Valleys, preserving the temperature longer than 

 in more open situations. 



After long dry weather the Rivers and Brooks here, as 

 might be expected with such rapid falls, suffer considerable 

 DiouglUs, and are quite diied up often, in places where at 

 other times the torrents are tremendous: a remarkable 

 drought is recorded in the year )66i, in which it was said, 

 hut not truly I think, that the Derwcnt was dried up at 

 Derby. See an accouai of the fluctuation of the Rain at 

 Chatsworlh in the last 50 years, at page 99. 



It has been reuiaiked, thai considerable Floods usually 

 follow Rain with the wind blowing down the cour.-e of the 

 Rivers. The D(A'e seems paiticularly subject to su(idrMi 

 Floods, which inundate its fine expanse of Meadows. Un- 

 der tliis head it may be proper tt) nientiou. that in 1587 the 

 Derwent was greatly swelled by a Flood, which caired away 

 St. Mary's Bridge : in I610, and again in 1673, the Mor- 

 ledge was so swelled by sudden Rams, as to do much 

 damage in Derby: Nov. 5, I698, the Derwent was greatly 

 flooded: also on the 'i I si of November, i791*, when it 

 carried away Toad-moor Bridge above Belpcr; on the I Ith 

 of February, 1793t» tbe same bridge, and those at Wat- 

 slaiuvell above it and Belper below it, were washed down ; 

 in the night of the 17th of August, 1799 +, the Derwent at 

 Matlock Town rose rapidly, to a most surprising height : 

 in February 1805 §, the Trent was unusually flooded. 



The lower parts of the Derwent and the Trent are in 

 some places Ernbanhed^ as will be further noticed in Sect. 2, 

 of Chap. XIII. : and the Banks of the Rivers and Brooks 

 have in some instances been sloped and improved, as will 

 be mentioned m Sect. I, of Chap. XII. 



* The Reg-ster kept ot llie Rain at Chatsworth, on this River, of which 

 1 have given an account at page 99, in the Week preceding this Flood, was 

 as tollows, viz. on the I4(h=173 inches, 15th = '14l, 16th='494, 17th = 

 •058, l8th = '378, 19th= 6lii, i20th = 1^-062, and aist=-074, total of the 

 week S'.'92 inciics. 



f In the Week preceding this Flood, the Rain at Chatsworth was as fol- 

 lows, viz. on tiie 9th = -i;74 inches, 10th=l-184, and 1 lth = M3J, total lo91 

 inches. 



i The Rain of the previous Week was, on the 9th = *j41 inches, 10th = 

 •248, llth=-037, J3lh=036. l3th = -052, 16th = -118, and 17th = l-403, 

 total 2435 inches. 



§ The Rain at Chatsworth in the first Week of this Month was, on the 

 <th = -357 uicheb, 5tb = -£00,and »th= 901, total 1-758 iucLes. 



lu 



