132 



Tank and well waters 



Mr. Waldie's Investigations connected [No. 2 



Table IX. 



For 100,000 gr. water. 



Hardness. 



Equal to that from 



Carbonate of Lime, 



in grains. 



General's Tank of 18th Feb. 1867, 



ftamdhone Ghose's Tank of 18th Feb. 



Baranagar Well of 22nd Feb 



Nyan Chund Dutt's Lane Tank, , 



"Well, 



"Blaquiere's Tank, 



Manictollah Well, ... . 



Puttureaghat Street Well, 



Nimtollah Street Well, 



River water of street aqueduct, 



Total. 



6.4 

 29.9 

 70.4 

 33.7 

 69.7 

 51.1 

 68.1 

 53.3 

 127.5 

 19.7 



Perma- 

 nent. 



2.1 

 15.1 

 12.3 



2.9 

 171 

 14.5 



6.1 

 11.0 

 24.0 



2.1 



Chlorine 



calc. as 



Chloride 



of Sodium. 



28.66 

 45.40 

 40.10 

 44.30 

 31.60 

 58.50 

 53.10 

 111.20 

 1.73 



And to get a full insight into the nature of such waters, a complete 

 analysis was made of two of them, of which this is the result for 

 100,000 fluid grains of water. 



Table X. 



Potash, 



Soda, 



Lime, 



Magnesia, ...... 



Chlorine, 



Sulphuric acid, 



Phosphoric acid, 



Silica, 



Carbonic acid by difference, (including 

 errors of analysis,) 



Organic matter, 



Nitric Acid, 



Puttureaghat 

 Street Well. 



grains. 



30 49 

 31.35 

 14.00 



8.76 

 32.30 



1.84 



7.00 



23.03 



148.77 

 9.23 



158 



Nimtollah 

 Well. 



grams. 



34.77 

 3533 

 31.20 



22.80 

 67.81 

 13.20 



4.80 



47.46 



257.37 

 21.23 



278.6 



none detected, small quantity. 



