1885.] 



Metals daring Diffusion of Salt and Fresh Water. 



3 





Chloride of 

 sodium in 

 water. 



Grains per gal. 

 91 '95 

 109 -50 

 117 -46 



104 -48 

 110-16 

 213 -70 



101 -43 



130-35 

 189-18 



Crossness. 



Tide. 



hours flood 



33 33 

 33 33 



as 



ES 



0> 5 2 



02 











i— 1 















Depth 

 from 

 surface. 



Surface . . 

 20 ft. in 

 40 ft. in 



Surface . . 

 17 ft. 6 in. 

 35 ft. Oin, 



Surface . . 

 17 ft. in. 

 34 ft. in, 

























ride 

 ium 

 ater. 



% 



£ os J>- o 



^CO Tfl op 



\0 OS Tf( 

 OS 00 i — 1 



K5 CD CO 

 O 00 OS 







(M <M <M 



CO CO 



CO tJ< iM 





a 







rich. 





o 









Tid. 



1 . „ 



o - ~ 



02 

 Ph 



02 



o 





CM 



CM 



co 





Deptli 

 from 

 surface. 



Surface .... 

 Middle .... 

 27ft. Oin. . 



Surface .... 

 13ft. 6 in... 

 27ft. Oin... 



Surface .... 

 lift. Oin... 

 22ft. Oin... 





Chloride of 

 sodium 

 in water. 



Grains per gal. 

 1-98 

 3-46 



CD CM ^ 

 CO ^n. rfl 



CM CM CM 





London Bridge 



Tide. 



1 hour flood 



O R 5 







Depth 

 from 

 surface. 



Surface .... 

 Middle .... 



Surface .... 

 Middle .... 

 Bottom .... 





