RECORD AND REDUCTION OF THE TIDES. 



27 



Series III. —Tidal Observations from April 20 to August 3, 1854. 



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. 



April, 1854. 



Mean 



solar 

 hour. 



20 th. 



Red. 



to 

 level. 



3 

 4 



5 

 6 



7 



8 



9 



10 



11 



Noon 



1 



2 



3 



4 



5 



6 



7 



8 



9 



10 



11 



Midu't 



Ref. 

 obs. 



11.3 



8.3 



6.7 

 6.4 

 6.4 



6.4 

 6.7 



7.1 



9.0 



9.5 

 9.7 

 9.7 

 9.7 

 9.5 



7.9 

 7.0 

 6.9 

 6.9 



—1.0 

 —1.1 

 —1.2 



a 



—1.3 



ft 



ft 



—1.4 



(( 



—1.5 



u 

 tt 



—1.6 

 it 

 ft 



—1.7 

 —1.8 

 —1.9 

 —2.0 

 —2.1 



21st. 



10.3 



7.2 



5.5 

 5.2 

 5.1 

 5.1 

 5.4 



5.7 



6.5 



7.5 



8.0 

 8.2 

 8.1 

 8.1 

 7.9 



7.1 



6.1 



5.1 



4.9 

 4.8 



6.7 

 7.3 



7.9 



9.0 



10.2 



11.4 



12.1 



12.5 

 12.6 

 12.5 



11.0 



9.9 

 8.5 



7.9 



7.4 

 7.0 

 7.0 

 7.0 

 7.4 

 8.0 



Red. Ref. 



to obs. 



level 



8.5 



9.2 

 10.1 

 10.5 

 10.5 

 10.5 

 10.5 

 10.5 

 10.0 



9.1 



8.4 

 7.9 



—2.2 

 ii 



—2.3 

 —2.4 



tt 



—2.5 



It 



—2.6 



It 



—2.7 

 —2.8 



U 



—2.9 

 —3.0 



ft 

 tt 



—3.1 



ft 

 If 



—3.2 



ft 



—3.3 



a 

 a 

 a 

 (t 



u 



—3.4 



ft 



ft 



(( 



—3.5 



22d. 



Red. 

 to 



level. 



4.5 

 5.1 



5.6 



6.6 



7.8 



8.9 



9.6 



9.9 

 I ( i.O 

 9.8 



8.2 



7.1 



5.6 



4.9 

 4.4 

 4.0 

 4.0 

 3.9 

 4.3 

 4.9 



5.6 



5.3 



5.9 

 6.8 

 7.2 

 7.2 

 7.2 

 7.2 

 7.1 

 6.6 

 5.7 



5.0 



4.4 



7.8 

 7.5 

 7.5 



7.7 



7.9 



8.9 



9.7 



12.2 



13.3 

 13.7 

 14.3 

 14.0 

 13.7 



12.3 



11.3 



10.7 



8.7 



8.3 



8.0 

 8.0 

 8.0 

 8.0 

 8.3 

 9.0 



10.8 



11.5 



12.5 



13.0 

 13.9 

 13.9 

 13.0 

 12.0 



11.3 



—3.5 



ft 



(( 



—3.6 



If 



—3.7 



II 



—3.8 



If 



tt 



—3.9 



Ref. 



—4.0 



23d. 



1.2 



4.3 

 4.0 

 4.0 

 4.1 



4.3 



5.2 



6.0 



8.4 



9.5 



9.9 



10.4 



10.1 



9.8 



8.4 



7.4 



6.7 



4.7 



4.3 

 4.0 

 4.0 

 4.0 

 4.0 

 4.3 

 4.9 



6.7 



7.4 



8.4 



8.9 



9.8 

 9.8 

 8.8 

 7.8 



7.1 



10.0 



9.9 

 8.5 

 8.3 

 8.5 

 8.7 



10.2 



11.8 



13.2 

 14.0 

 14.9 

 14.9 

 13.0 



?8.1 



10.7 



11.5 



9.5 



8.3 



7.2 

 6.6 

 6.1 

 6.0 

 6.5 



7.5 



9.3 



10.8 



12.0 

 12.8 

 13.6 

 13.6 

 13.0 



9.0 



Red. 



to 

 level. 



Ref. 

 obs. 



24th. 



—4.2 



Red. 



to 

 level. 



5.8 



5.7 

 4.3 

 4.1 

 4.3 

 4.5 



6.0 



7.6 



9.0 



9.8 



10.7 



10.7 



—4.3: 7.2 



5.2 



4.0 



3.0 

 2.4 

 1.9 

 1.8 

 2.4 



3.4 



5.2 



6.7 



7.9 

 8.7 

 9.6 

 9.6 

 9.0 



—4.0 



5.0 



9.4 



7.5 



6.7 

 6.5 

 6.5 

 6.7 

 7.1 



8.8 



10.5 



12.9 

 15.0 

 15.0 



14.9 



14.6 



12.9 



10.6 



9.0 



7.4 



6.1 

 5.4 

 5.7 



8.1 



9.0 



10.4 



13.5 



13.5 

 13.5 

 12.5 

 12.0 



11.5 



l.o 



—3.9 



Ref. 

 obs. 



25th 



5.4 



3.5 



2.7 

 2.5 

 2.6 

 2.8 

 3.2 



4.9 



6.6 



9.0 

 11.1 

 11.1 



11.0 



10.7 



9.1 



6.8 



5.2 



3.6 



11.1 



8.8 

 7.5 



6.4 



5.8 

 5.0 

 6.0 

 7.0 



8.5 



10.9 



13.4 

 14.5 

 15.5 

 15.3 

 14.1 



12.5 



10.3 



8.3 



6.9 



Red. 



to 

 lovel. 



Ref. 



—3.4 



7.6 



5.3 



4.0 



3.0 

 2.4 

 1.6 

 2.6 

 3.6 



5.1 



7.6 



10.1 

 11.2 

 12.2 

 12.0 

 10.8 



: | 9.3 



7.1 



5.1 



3.7 



2.0 

 1.8 

 1.8 

 1.8 

 2.0 



—3.1 



4.3 

 6.6 



April 20. No sounding. 



The corrections were deduced from the curves. 



