1866. J with (Jir supply of water to Calcutta. 200 



influence of the tides. The change of course is gradual, commencing 

 in March and increasing as si 1 own by Dr. Macnamara's report. I did 

 not make observations until the first of May. 



Table II. 



Chlorine cnle. 

 as Chloride 

 To compare Ebb and Flood Tide. of Sodium. 



Saline matter dried 

 at 220° F. 



For 



1866 a mile above Baranagar — 





For 100,000 



100,000 



Imp. gal. 



IVIav 1st second (lav of full mnn« 



grs. 



grs. 





Low water nearly complete 



> 





28.0 



19.60 



High water nearly complete, Surface 





61.55 



43.08 





Deep, 





59.55 



41.68 



At Calcutta— 











2nd, third day of full moon, 











( About | Ebb, stream, 

 ( Opposite Bankshall. 



Surface 





36.20 



25.30 



Deri.), 



15.50 







( About | Flood, stream, 

 1 Opposite Hatkolah. 



Surface 





88.50 



62,19 



Deep, 



55.50 







At Baranagar — 











16th, third day of new moon, 











Above 1 or 1J hour Ebb, 



Surface, 



40.00 



66.40 



46.48 



Deep, 



Above f Flood, Surface, 



Deep, 



Nearly high water complete, Surface, 



Deep, 



To sJteio state at Neap tide. 



24th, fourth day of first quarter of moon. 



1 hour after beginning of Ebb, Surface, 



Deep, 



3 hours after do. Surface, 12.50 ^ 010t . K ^5 



Deep, 



To shew rate of change during 



Ebb and Flow. 



May 30th, third day of full moon. 



At shore 5 h. before tide begun, ... 27.00 



2h. before do, 21.50 



40.00 



66.40 





68.60 



78.00 



107.20 



75.00 



109.00 



82.50 



104.70 



80.00 



106.20 



17.50 





18.50 





12.50 ") 

 11.50 ] 



21.25 



15. 



