TIDAL OBSERVATIONS. 



147 







For 



\Ioon's Tj'ansit between 



2 and 3 hours. 











First Series. 









C 's transit. 



Liin. interval for 

 high water. 



Height of 

 high water. 



C's 



transit. 



Lun. interval for 

 low water. 



Height of 

 low water. 



2" 



15™ 



10^ 30" 



23«3 



2" 



15-° 



11" 2.5" 



12'''.3 



(2 



(2 



2 



42) 

 22) 



48 



(10 18) 



(10 38) 



10 57 



(19 7) 

 (23.0) 

 19.2 



(2 

 (2 

 2 



42) 

 22) 

 48 



(16 03) 

 (16 53) 

 16 27 



(12.2) 

 (12.0) 

 12.3 



Second Series. 



(2 

 2 



16) , 



42 



(10 37) 

 10 42 



(19.1) 

 22.4 



(2 

 2 



16) 

 42 



(10 28) 

 17 18 



(12.1) 

 11.8 



(2 



2 



00) 

 26 



(10 48) 

 10 46 



(23.8) 

 20.2 



(2 



2 



00) 

 26 



(17 17) 

 16 35 



(11.6) 

 12.2 



(2 

 2 



50) 

 18 



(10 40) 

 10 40 



(23.5) 

 2.3.3 



(2 

 2 



50) 

 18 



(16 59) 

 17 13 



(11.9) 

 10.9 



(2 



42) 



(10 46) 



(20.0) 



(2 



42) 



(16 37) 



(11-t) 



Mean, 2 



29 



10 40 



21.6 



2 



29 



16 50 



11.9 



The greater the number of vahies the more will the uncompensated part of diurnal 

 inequality, declination effect, and parallax effect, disappear from the mean results. 

 No observation was rejected. 



The following table contains the mean hourly values for the high waters and 

 low waters : — 





For high water. 









For low water. 











Number 

 of 













Number 



















of 



•C 's transit. 



Lun. int'l. 



Height. 



observations. 



£.'s 



ransit. 



Lun. 



int'l. 



Height. 



observations. 



Qh 27"' 



IP 17" 



21«.7 



11 



0" 



27" 



17" 



24" 



11«.8 



11 



1 29 



10 59 



21.3 



12 



1 



29 



17 



02 



11.9 



12 



2 29 



10 40 



21.6 



11 



2 



29 



16 



50 



11.9 



11 



3 29 



10 35 



21.2 



12 



3 



28 



16 



45 



12.5 



11 



4 28 



10 28 



20.2 



13 



4 



28 



16 



31 



13.3 



13 



5 30 



10 50 



19.7 



13 



5 



27 



16 



52 



13.6 



11 



6 30 



11 09 



19.3 



8 



6 



26 



17 



10 



14.3 



11 



7 26 



11 45 



19.3 



13 



7 



26 



17 



44 



14.2 



13 



8 22 



11 49 



19.8 



10 



8 



21 



18 



10 



13.1 



8 



9 30 



11 54 



20.4 



9 



9 



30 



17 



53 



12.8 



8 



10 29 



11 47 



20.9 



8 



10 



29 



17 



51 



12.6 



9 



11 28 



11 33 



21.2 



11 



11 



25 



17 



42 



11.9 



11 



Mean, 



11 13.8 



20.5 







17 



19.5 



12.8 





From th 



is and the preceding table we f 



ind :- 

















Height of average high water level 











20.5 feet 







Height of 8 



verage low 



water level 





. 







12.8 feet 





