QE BbA GM ot 
OBSERVATIONS 
EBBING AND. FLOWING WELL, 
| At cs eH in the West Riding of Yorkshire, 
‘WITH Ke THEORY OF 
RECIPROCATING FOUNTAINS; 
‘BY Mr. JOHN GOUGH. 
IN A LETTER TO DR. HOLME. 
(Read October 4th. 1811.) 
>? O<<— . 
SIR, Middleshaw, near Kendal, July 22, 1811. 
I ADDRESSED a letter to you on recipro- 
cating fountains, in February 1806); which 
you did me the honour to lay before the 
Literary and Philosophical Society of Man- 
chester, on the seventeenth of October fol- 
lowing. Certain additional facts relating to 
the subject have come to my knowledge since 
that time; the importance of which has in- 
duced me to supersede my former communi- 
cation by a corrected essay on these singular 
phenomena. 
When a theory happens to be formed from 
the comparison of a few facts only, future 
observations frequently perplex it with diffi- 
