Tidal observations in Danmarks Havn October 3rd 1906— March 2nd 1907. 433 



In Appendix I to his "Treatise on tides" p. XVIII, the Rev. 

 Dr. Whewell has given a table "Correction of the vulgar Establish- 

 ment to find the Liinitidal Interval". The same dimensions have 

 been taken from curve III and for comparison noted down in the 

 following table. — The curve p. XVIII corresponds to a tidal wave, 

 whose age is 1^/^ days. 



ïour of moon's transit (true time) 



1 



2 



3 



4 



5 



6 



7 



8 



9 



10 



11 



Correction (Dr. Whewell) 



Correction-curve III 



m 





 



m 

 —16 

 —15 



m 



-32 

 -30 



m 



-47 

 -47 



m 



-57 

 -61 



m 



-60 

 -71 



m 



—47 

 -55 



m 

 -16 



-18 



m m 



+15 '+28 

 +19 '+35 



m 



+25 

 +26 



m 



+15 



+14 



On p. XIX a correction is given for the "mean establishment" 

 and if from this and curve III here we calculate the times of high 

 water corresponding to the whole hours, we obtain the following table 

 for comparison. 



Hour of moon's transit (true time) 







1 



2 



В 



4 



5 



6 



7 



8 



9 



10 



11 



rime of high water (Dr. Whewell) 

 — - — — from curve III 



h 

 10 

 10 



m 



47 

 49 



h 

 11 

 11 



m 

 31 

 34 



h m 

 1215 

 1219 



h 

 13 

 13 



m 

 00 

 02 



h 

 13 

 13 



50 

 48 



h m 

 14 47 

 14 38 



h 

 16 

 15 



m 



00 



54 



h 



17 

 17 



m 

 31 

 31 



h 

 19 

 19 



Ш 



02 

 08 



h 

 20 

 20 



m 

 15 

 24 



h 

 21 

 21 



m h|m 



12 22 02 



15|22|03 



In conclusion, I desire to express my best thanks to Captain 

 H. Ravn for the kindness and assistance he has shown me during the 

 preparation of this work. 



XLI. 



28 



