210 Mr. Waldies investigations connected [No. 3, 



Stream, above 4 hours flood 7 64.00 83.85 58.7 



June 1st, fifth clay of full moon. 



5 h. 10 m. before tide begun, 35.00 



1-20 ditto ditto, 16.50 



2-10 after ditto, 26 50 



5-10 after ditto, Surface, 69.50 



Deep, 58.50 

 14th, third day of new moon.* 



Tide commencing about noon, 



At 6 h. 40 m. A. M. Surface, 63.50 



Deep, 65.90 



11-5 A.M. Surface, 15.00] QA 7 01 , a 



Deep, 14.00 J dU> ' A AJ 



2-20 P. M. Surface, 71.00 



Deep, 85.50 



4.20 P.M. JET SB} 15L9 106 ' 33 



The water was collected either by filling vessels from the surface, 

 or in the case of the deep water by lowering a tin bucket provided with 

 proper valves. The much larger quantity of heavier mud brought 

 up by the bucket proved that it acted properly. The water was 

 collected in almost every instance under my own personal superinten- 

 dence. 



The collection was made by means of an ordinary small boat 

 or dinghy. The changes of position which could not be avoided 

 account for the irregularities between the surface and deep waters, 

 taking into account the strong currents and eddies that prevail. 



The table exhibits the great influence of the tides : taking the 

 extreme case of 14th June after long drought, just two days before 

 the rains commenced, we have in 100,000 fl. grains of water 151.9 grs. 

 solid matter at high water, and 30.7 gr. at low water, or nearly 5 to 1 ; 

 while comparing the Chlorine as Chloride of Sodium or common salt, 

 the proportion is fully 8 to 1. These great differences occur chiefly at 

 spring tides. The results of 24th May shew how comparatively 

 small this is at Neap tides, 19 grains of salt at nearly high water to 

 12 grs. at nearly low water. 



* Highest tides are on third day of new or fall moon. 



