1S39] ajid Set of the Tides at Madras. 



Observed elevations of the Station above the level of the Sea, ^-c. 



143 



Date. 



1838 



November 19 at 7 A.M 



8 „ 



9 „ 



10 „ 



11 „ 



D. H, M. 12 ,, 



(• Nov. 17 123) f P.M 



3 " 



4 



5 



Mean 



Maximum c. . . . 



Minimum 



DiiFerence 



Approx. time of) 

 high water j 



h, m. 



8 30 



Observed with theodolite. 



5 feet achromatic 



1st buoy 





Surfbks 



1st buoy 





Feet 





Feet 



Feet 





31,31 



* 



308 



30,82 



* 



30 58 





332 



30 70 





31,07 





291 



30^94 





31,79 





308 



31 ,66 





32,03 







o 1 on 

 31,90 





32,51 





295 



32, 1 5 





32^75 





338 



3-!',!0 





QQ 





<joo 



in 



do, iU 





33.2^ 





343 



33,58 





32.75 





310 



33,20 





ii2,75 





290 



32,62 





32,16 







32,16 





~33,23~ 





357 



33,58 





30,58 





290 



30,70 





2,05 







2,88 





Remark. 



feet 

 Mean=32,16 



Mean=2,76 



n. m. II. Ill 



8 0 or mean=8 15 

 J) culminates 1 22 

 High water bef. 1) culm 5 7 



Mem, — The outer buoy had broken from its mooring and come on shore on the morning 

 ©f the 17th. 



I 



Observed with theodolite. 



5 feet achromatic. 



Remarks. 



Date. 



1st buoy 





Surfbks 



1st buoy 





1838 



November 26 at 8 A.M. 



9 „ 



10 „ 



11 „ 



T>. H. M 



(:})Nov.241l53) 12 „ 



1 P.M. 



2 „ 



3 „ 



4 „ 



5 >, 



Feet. 



32, 

 32,51 

 32,75 

 33,23 



82,51 

 32,27 

 31,55 

 31,55 

 31,31 

 81,11 





Feet. 



"252 

 260 

 267 



265 

 260 

 268 

 3'6 

 ,311 

 296 



Feet. 



33,00 

 33,20 

 33,92 



32,96 

 32,48 

 32,00 

 31,52 

 31,04 

 31,76 





feet 



Mean=32,30 







32.16 





32,43 





33,23 

 31,31 



316 

 252 



33,92 

 31,04 





1,92 







t 2,88 







Approx. time of) h. m. h. m. h. m. 



high water / 3 30 4 0 or mean— 3 45 



culminates. .7 30 



High water bef. j, culm, 3 45 



* The second or outer buoy had parted from her anchor and come ashore, 

 t This result is evidently too large and had better be omitted. 



