RECORD .WD REDUCTION OF THE TIDES. 



Series I. —Tidal Observations rEOM October 10, 1S53, to December 28, 1853. 



Hourly observations on the pulley-gauge. Adopted reading of mean level 7.0, expressed in units 

 of the scale. Increasing numbers indicate rise of water. 



November, 1853. 



Red. Ref. 

 to obs. 



level. ' 



6th. 



Red. 



to 

 level. 



3 



4 



5 



6 



7 



8 



9 



10 



11 



Noon 



1 



2 



3 



11.5 



ll.o 

 10.0 



9.2 



5.7 



3.5 



2.3 



2.0 

 2.0 

 2.4 



2.6 

 2.7 



6.7 



11.1 



13.1 

 13.6 



14.2 

 14.2 

 14.1 



-1.4 



—1.3 



1M.1 



9.6 

 8.6 

 7.9 

 4.4 

 2.2 

 1.0 



0.7 

 0.7 

 1.1 

 l.:; 

 -1.2 1.5 



5.5 



9.9 



11.9 

 12.4 



13.0 

 13.0 

 13.ii 

 11.9 

 11.2 



9.7 



7.1 



-1.1 



-1.0 



9.0 



9.8 



9.9 



in. I' 



LO.O 



10.0 

 8.1 



7.7 



5.5 



4.5 

 4.0 

 3.6 

 3.1 

 3.1 

 3.2 

 4.3 



5.7 



8.3 



11.5 



ll.o 



10.7 



9.1 



—1.0 



—0.9 



— 0.: 



-0.7 



4.0 7.5 



2.2 

 1.8 

 1.9 

 2.4 

 3.1 



5.0 



6.3 



5.4 



4 2 

 4.0 

 3.2 

 3.2 



4.0 

 4.5 

 4.9 



-0.6 



Ref. 

 obs. 



Ttb. 



Red. 



to 

 level. 



8.0 



4.6 



10.9 



10.4 



10.1 



8.5 



6.9 



4.8 



6.6 



7.S 



9.5 



10.6 

 10.9 

 11.2 

 11.2 

 11.1 

 10.2 

 10.2 



8.5 



7.5 



—0.6 



-0.5 



Ref. 



6.0 



7.3 

 .-.2 

 8.2 

 8.2 

 8-2 

 8.2 

 8.0 



6.0 



4.9 



3.5 

 3.5 

 3.2 

 3.4 



3.9 

 5.0 

 6.3 



7.6 



9.0 



10.1 

 L0.4 



10.7 

 10.7 



lo. i; 

 9.7 



9.7 



8.0 



8th. 



4.3 

 5.3 

 5.6 

 6.2 



7.1 



7.9 



7.9 

 8.2 

 8.0 

 7.8 



7.3 



6.3 



5.5 



5.3 



5.5 

 5.3 

 5.1 

 5.3 



5.6 



8.3 

 9.5 



10.1 

 10.5 

 10.5 

 10.5 

 10.5 

 110.5 

 7." 10.0 



5.1 

 3.9 



3.S 



3.6 



3.6 

 3.5 



7.0 



4.9 

 42 

 4.0 



Red. Ref. 

 to obs. 



level. 



—0.5 



—0.4 



—0.3 



—0.2 



-0.1 



0.0 



+0.1 



+0.2 



3.8 

 4.8 

 5.1 



5.7 



6.6 



7.4 

 7.5 

 7.8 

 7.6 

 7.4 



7.0 



6.0 



5.2 



5.0 



5.2 

 5.1 

 4.9 

 5.1 



5.4 



6.9 



8.1 



9.3 



10.0 

 10.4 

 10.4 



10.4 

 lo.4 



«th. 



3.8 

 3.9 



4.2 

 4.0 

 4.5 

 5.0 



6.0 



7.5 



7.9 

 7.9 

 8.0 

 8.0 

 8.0 

 7.4 

 6.9 



6.0 



4.8 



4.6 



4.4 

 4.5 

 4.5 

 5.1 

 5.5 



7.1 



9.2 

 9.6 



10.1 



9.5 



11.1 



Red. 



to 

 level. 



+0.2 



+0.1 



0.0 



-0.1 



10.4 11.1 



10.0 



7.1 



5.0 

 4.3 



4.2 



L1.0 

 9.8 

 8.9 



7.0 



4.7 

 4.7 

 4.5 



Ref. 



obs. 



loth. 



-0.2 



4.0 

 4.1 

 4.4 

 4.2 

 4.7 

 5.2 



6.2 



7.7 



8.1 

 8.1 

 8.1 

 8.1 

 8.1 

 7.5 

 7.o 



6.1 



4.9 



4.6 



4.4 

 4.5 

 4.5 

 5.1 



5.5 



7.1 



9.1 



9.5 

 10.0 



9.4 

 11.0 

 11.0 

 10.9 



9.7 



6.9 



4.5 

 4.5 

 4.3 



4.5 



4.5 

 4.3 

 4.0 

 4.2 

 4.5 

 4.5 

 4.1 

 5.8 

 6.5 



8.5 



9.9 



9.6 



10.0 



10.2 

 10.2 

 lo.2 

 10.1 

 9.8 



9.0 



7.5 



6.5 

 6.3 

 6.0 

 6.0 



6.5 



7.0 



7.9 



9.5 



10.9 

 11.4 

 ll.o 

 ll.o 

 ll.o 

 11.3 

 11.3 



10.9 



9.5 

 8.5 



Ref. 



to "Iks. 

 level. 



-0.2 



—0.3 



—0.4 



-0.5 



4.3 

 4.3 

 4.1 

 3.8 

 4.0 

 4.2 

 4.2 

 3.8 

 5.5 

 6.2 



8.2 

 9.6 

 9.2 



9.7 

 9.8 

 9.8 

 9.8 

 9.7 

 9.4 



8.6 



7.0 



6.0 

 5.8 

 5.5 

 5.5 

 -0.6 5.9 



6.4 



7.3 

 8.9 



L0.3 



10.8 

 10.4 

 10.4 



10.4 

 10.7 

 10 ii 

 10.2 

 8.8 



—0.7 



7.8 



Nov. 8. From this date the observations are half-hourly; in the above record, however, only those half- 

 hourly readings were inserted, which occur near a high or low water. 



