504 FOURTH REPORT — 1834. 



Duration of the Day Flood Tides. 



hrs. rain. hrs. min. hrs. min. sec. 



1832. 88 stood from 2 15 to 4 ; mean of all the tides 3 5 6 



1833. 82 1 45-3 15; 2 50 54* 



1834. 89 2 30 - 3 30; 3 1 47'' 



Conclusions. 



The changes at Kew Bridge, situated 13 mil. fur. 12 pol. 

 above London Bridge, have been as follow : 



1. The high-water mark at the top\5 ins. higher than in 1832. 



of spring tides stood in 1834 J 2 ditto ditto 1833. 



2. The high-water mark at the ex- 1 . •,.,, j.^^ ,r.c« 



. ° f ,-1 ^ 1 • I 5 ditto ditto 1832. 



treme or neap tides stood in > ^ . , ^, . ,„„„ 



,004 7 uis. lower than in 1833. 



3. The high-water mark upon thei 1-93 ditto ditto 1832. 



average stood in 1834 J 7-76 ditto ditto 1833. 



4. The low- water mark at the top"! 44 ditto ditto 1832. 



of spring tides stood in 1834 j 40 ditto ditto 1833. 



5. The low-water mark at the ex-'| ^3 ^-^^^ ^j^^^ jg32^ 



treme of neap tides stood in ^3 ^j^^^ ^.^^^ jg33^ 

 1834 J 



6. The low- water mark upon the \ 12-49 ditto ditto 1832. 



average stood in 1834 jl9-29ditto ditto 1833. 



7. The range of the tide upon the\ 10-56 greater thanin 1832. 



average was in 1834 J 11*53 ditto ditto 1833. 



8. The range of the flood tide how-1 ^ ^j^^^ ^j^^^ lg32_ 



ever atthe top of spring tides g jj^^^ ^j^^^ lg33_ 

 was in 1834 J 



9. The range of the flood tide atl gj ditto ditto 1832. 



the extreme of neaps was m ^ ^ ^^^ ^j^^^ lg33 

 1834 J 



rx,, , . p , « T •! r3min. 19 sec. longer 



10. The duration of the flood tide J ^^^^ jj^ "^ jg3o 



upon the average M-as in 1834 | jq ^^^^^ 53 ^^^ ^itto 1833^ 



11. The average of high-water mark! 3.491^8. less than in 1832. 



stood at Kew Bridge above ^ 3.94 ditto ditto 1833. 

 that at Putney in 1834 J 



21. The average declivitj'^ of low-^ 



water line between Kew and I 0-8707 ditto ditto 1832. 

 Putney Bridges, per mile, was I 1-3405 ditto ditto 1833. 

 in 1834 r J 



hrs. min. sec. 

 b ol *3 19 } ^^"■^'ase i" ''>e duration of the flood tide. 



