87 



Analysis of water from Tangier and Pocomokc Sounds and Chesapeake Bay — Continued. 



Locality. 



Section 2, Station E — 

 High water 



Low water 



Section 3, Station B — 

 High water 



Low water 



Section 3, Station F- 

 High water, A. .. 



High water, B. . 



Section 4, Station C- 



High water 



Low water 



Chesapeake Bay — 



Stations 18 and 19, bottom water 



Atlantic Ocean — 



Latitude 41.18 N., longitude 36.28 W . 



Total solids at 120°. 



Separate 

 determi- 

 nation. 



20, 904 

 20, 800 

 19, 850 

 19, 830 



23, 118 

 23, 122 

 23, 568 

 23,454 



23, 200 

 23, 324 

 23, 670 

 23, 678 



23, 200 

 23, 180 

 22, 210 

 22, 238 



18, 306 

 18, 410 



Mean. 



20, 852 

 19, 845 



23, 120 

 23, 511 



23, 262 

 23, 674 



23, 190 

 22, 224 



18, 358 

 38, 400 



Chlorine. 



Separate 

 determi- 

 nation. 



10, 820 

 10, 840 

 10, 460 



10, 500 



11, 880 



11, 920 

 12, 020 

 12, 100 



12, 120 



12, 080 

 12, 160 

 12, 200 



12, 080 

 11, 960 

 11, 680 

 11, 720 



9,800 

 9,760 



Mean. 



10, 830 

 10,480 



11, 800 



12, 060 



12, 100 

 12, 180 



12, 020 

 11, 700 



9,780 

 20, 839 



Sulphuric acid. 



Separate 

 determi- 

 nation. 



1, 708. 4 

 1, 694. 8 

 1, 662. 8 

 1, 645. 6 



1,948.2 



Lost. 



1, 995. 6 



1, 994. 6 



1, 960. 

 Lost. 



2, 002. 

 2, 006. 



1, 952. 8 

 1, 955. 4 

 1, 923. 2 

 1, 822. 4 



1, 578. 

 1, 541. 6 



Mean. 



1, 701. 6 

 1, 654. 1 



1, 948. 2 

 1, 995. 1 



1, 960. 

 2, 004. 



1, 954. 1 

 1, 872. 



1, 595. 8 

 3, 029. 8 



Note by Professor Monroe. — No determinations of organic matter were made, as it was 

 found that the amount was so small that it could not be readily determined in the small sample 

 furnished. 



No determinations of Ca were made, the time given for the analytical work not permitting it. 

 It will be seen from the analysis that the water consists of ocean water more or less diluted with 

 fresh water, and that the proportion of fresh water is greater at low tide than at high, except in 

 the case of station B, section 3. 



Another feature to be noticed is that the proportion of sulphates in the water analyzed to that 

 in the Atlantic water is greater than that of the chlorides; this point is important. 



As both samples of water from section 3, station F, were taken at high water I have desig- 

 nated them as A and B. 



