HERTFOKDSniRE NATURAL HISTORY SOCIETY. 



Iv 



3. " Eoport on Floworine; Plants and Ferns observed in Hert- 

 fordshire iu 1882." By Ada Selby. {IVansadions, Vol. II, p. 2;i7.) 



4. "Notes on Wild Flowers observed near Royston in 1882." 

 Bv A. Kingston. Communicated by John Hopkinson, Hon. Sec, 

 {Transactions, Vol. II, p. 240.) 



5. " Xotos on Injurious Insects observed near Harpcndon in 

 1881 and 1882." By John J. Willis. Communicated by J. Hop- 

 kinson. [Transactions, Yol. II, p. 240.) 



6. " Notes on some Fish recently caught in Hertfordshire." By 

 John E. Littleboy. 



Mr. Littleboy stated that a pike {Eso.v hiciua) weighing llilhs. was caught 

 duriug the autiimu of 1882 in a pond just within the grounds of Mr. NV. Jones 

 Loyd, Langleybury, and adjoining the Grand Junction Canal, and that another 

 weighing 6^1bs. was taken from the same pond at about the same time ; that Mr. 

 A. F. Buxton had informed him tliat a bream [Ahrantis bramn) was taken early 

 iu January, 1883, in a poud through which flows the River Ash ; that Dr. Brett 

 had informed him that on the 14th of April a trout [Salmo fariu) weighing 

 5ilbs. and measuring 25 inches in length, was caught in the Colne near Hamper 

 Mill ; and that Mr. G. H. Thomas had secured with a fly on the 9th of April a 

 trout weighing 9|lbs. from the mill-stream at the back of Colne-brook, High 

 Street, Watford. 



Ordinary Meeting, 19th April, 1883, at Ware. 

 EiCHARD B. Croft, B, N., F.L.S., F.R.M.S., in the Chair. 



1. " Notes on the Biver Lea below Hertford." By Bichard B. 

 Croft, R.N., F.L.S., Hon. Sec. {Transactions, Vol. II, p. 243.) 



2. " Eeport on the Bainfall in Hertfordshire in 1882." By the 

 Rev. C. W. Harvey. {Transactions, Vol. II, p. 249.) 



3. " Meteorological Observations taken at Throcking, Herts, 

 during the year 1882." By the Rev. C. W. Harvey, M.A., F.M.S. 

 {Transactions, Vol. II, p. 255.) 



Field Meeting, 2 1st April, 1883. 

 BERKHAMPSTEAD AND THE VALLEY OF THE BOURNE. 



Phenomena connected with the flow of water on the surface of 

 the earth, or underground, either in past or present times, show 

 how mutually related are the sciences of geology and meteoi'ology. 

 An intermittent river, dependent for its flow on an unusually large 

 rainfall at a particular time in the year, and which may have ceased 

 for some time before it commences to flow, seems at first sight to 

 be a phenomenon of interest only to the meteorologist, but a little 

 reflection will show that the existence of such a stream must also 

 depend upon the nature of the strata upon which the rain falls, 

 and upon the form of the ground or amount of its slope, and that 

 it must therefore be of some interest to the geologist. 



Such rivers are usually called "bournes," although this term 

 merely signifies a "brook," or sometimes a "boundary." There 



