1856.] 



Silt held in suspension in the Hooghly. 



163 



APPENDIX. 



I give the following data, which are all useful elements of the 

 great problem of our yet unknown river, in the form of an Appendix 

 because the researches are not my own, and because it is right that 

 full justice should be done to the valuable labours of the gentlemen, 

 to whom we owe them ; for none but those who have been engaged 

 in these pursuits can form any idea of the careful, and minute, and 

 laborious details which are expressed in the few figures of the 

 table below : — 



Observers, and place and 

 time of observation. 



Lt. Col. Goodwyn, 

 B. E. at Calcutta. 

 Clive Street Ghat to 

 Howrah, in March,.. 



A. Bedford, Esq.H.C. 

 S. River Surveyor. 

 At Moyapore 13 miles 

 below Calcutta, 

 March, 1854, 



A. Bedford, Esq. at 

 Jiggerkolly Sema- 

 phore, below Diamond 

 Point and N. W. b. 

 W. 2f from Culpee 

 Pagoda, in March, 

 1854,* 



Averages of the Missis- 

 sippi River as given in 

 Mr. Ellet's work 





js 





6 a> 



'->-> . 





_ 



i " 



o ~ 



T3 







- "» 





c «? 



-3 



rstf 



G 

 CS 



0> 



.2 | 



a >> a . 



08 .- O 



<u y o 



£ 



« 



<x> 



S 



Feet. 



Feet. 



Sq. feet. 



Feet. 



2.060 



36.0 



74,160 



4.5 



3.300 



29' 10" 2 





2.88 



(nearly) 









8.800 



32' 1" 4 



•• 



4.596 

 Surface 



3.300 



115.0 



200,000 



7.00 



(p. 30) 



(p. 33) 



(P. 34) 



(p. 36) 



Discharge per 

 second. 



Cubic feet. 



444,960 



507,060 (H. P.) 



1.277.009 (H. P;> 



979.240 



below New Orleans 

 (P. 41) 



Col. Goodwyn and Mr. Bedford give also the following notes with 

 these results, which as they could not be conveniently tabulated, 

 I set down here. 



Colonel Goodwyn. 



1. Fall of the river bed about 4" per mile. 



2. The mean volocity above given, f ths that of the surface. 



* And below the point where the Dummooda and Roopnarain join the Hooghfy. 

 The flood tide from the sea much augments the volume of water here, so that the dis- 

 charge shewn is that of the whole tidal water of the estuary rather than that of 

 the river. 



y 2 



