76 
BULLETIN OF THE UNITED STATES FISH COMMISSION. 
the first group on which the heaviest growth was found (No. 2), the greatest difference 
being in the fact that in truck lands the percentage of medium sand is large while in 
our sample it is insignificant. The samples on which practically no plants were found 
are more uniform in texture than those of the first group and very much resemble 
the typical wheat lands, as given in plate 3, Bulletin 5, in which the percentage of 
fine sand and very fine sand is 36.90 and that of silt, fine silt, and clay 55.91. 
The water in sandy soils is undoubtedly better aerated than that in clay soils, 
though both are under water, because in the former case the water passes through 
the soil more rapidly than it does in the latter, and it would seem that even the roots 
of aquatics are unable to thrive in a soil so poor in oxygen as the saturated heavy clays. 
It will be necessary in future work to take many samples of the bottom under 
all conditions of vegetation and to take the temperatures not alone of the water but 
of the soil in which the plants are growing. A large series of such samples would 
make possible general conclusions that might be of practical value. 
Table I . — Mechanical analyses of soil samples taken from bottom of Put-in Bay and vicinity. 
Division No. 
Locality. 
j Collection No. 
Vegetation. 
Moisture in air- 
dry sample. 
Organic matter. 
i 
'Z s 
> 0 
o 
Coarse sand | 
(1-0.5 mm.). 
Medium sand ; 
(0.5-0.25 mm.). 
lO 
CM 
o 
•a a 
S0 
p 
E 
Very fine sand 
(0.1-0.05 mm.). 
Silt (0.05-0.01 
mm.). 
Fine silt (0.01- 
0.005 mm.). 
Clay (0.005-0.0001 
mm.). 
P. ct. 
P. ct. 
P. ct. 
P. ct. 
P.ct. 
P.ct. 
P.ct. 
P.ct. 
P. ct. 
P.ct. 
3852 
Near West Harbor 
11 
Scirpus pun- 
gens. 
0. 14 
0.88 
0.20 
0. 22 
0. 78 
83. 70 
12.80 
0. 35 
0.07 
0. 65 
3853 
do 
12 
do 
0.21 
1.99 
1.40 
1.59 
3.82 
67.11 
23. 82 
0. 38 
0.12 
0. 75 
3847 
0. 88 
3. 68 
0. 00 
0. 00 
0. 38 
74 15 
18.65 
1.04 
0. 31 
0.67 
1.86 
2. 55 
3858 
Edge of water near swamp . . 
17 
Fair 
0.40 
1.15 
0.00 
0. 02 
0.09 
11.42 
82. 50 
1.72 
3857 
Upper Sandusky Bav 
16 
2 
Very good 
0. 74 
2. 02 
0. 00 
0. 05 
0. 12 
20. 66 
5. 64 
1 . 52 
5.85 
3844 
Southeast of Gibraltar Bar. . 
Excellent 
0.26 
4. 52 
0. 67 
1.64 
6. 36 
38. 45 
35. 90 
3.36 
2.35 
8.10 
3851 
Portage River 
10 
Good 
2.54 
7. 07 
0. 00 
0.00 
0. 68 
4.70 
62. 00 
9.51 
2.92 
12. 55 
3848 
East Harbor 
6 
do ... 
2. 80 
7. 79 
0. 00 
0. 48 
21.58 
12. 15 
7.53 
4. 68 
17.13 
3843 
On Gibraltar Bar 
1 
Scant 
1.56 
6.26 
7.73 
7.13 
14.20 
8.59 
16.58 
6. 09 
21. 60 
3850 
Portage River, broad part. . . 
9 
Nothing 
3.13 
8.49 
0.00 
0. 00 
Trace. 
1.86 
27. 46 
24. 37 
7.63 
27. 39 
3854 
Upper Sandusky Bay 
13 
do 
2.47 
7. 76 
0. 35 
0. 00 
0. 12 
2. 13 
35. 73 
16.85 
6. 68 
28. 11 
3855 
1 ,000 feet from swamp 
14 
Very scant . . . 
2.34 
6. 45 
0. 00 
0. 29 
Trace. 
2.40 
29. 60 
21.75 
7.95 
28. 23 
3856 
Near Winona Point Club- 
house, Sandusky Bay. 
15 
do 
3. 62 
7. 23 
0.00 
0.00 
Trace. 
1.10 
30. 43 
19. 76 
7. 99 
28. 46 
3845 
Near fish hatchery in open 
lake. 
3 
Nothing 
2. 88 
5. 76 
0.19 
0.48 
1.35 
19. 15 
15. 78 
19. 54 
7.62 
29. 00 
3846 
In open lake 
4 
do 
2. 26 
5. 65 
0. 05 
0. 17 
0.37 
1.65 
20. 61 
29. 21 
9. 20 
32. 50 
3849 
East point of Middle Bass 
Island, open lake. 
7 
do 
1.63 
7. 46 
0.21 
0.41 
0. 86 
2. 77 
16.77 
26. 06 
9.33 
36.10 
Table II . — Comparison of samples collected at Put-in Bay and vicinity, with typical truck and. wheat soils. 
Division No. 
Collec- 
tion No. 
Depth 
in feet. 
Condition of 
vegetation. 
Per cent 
of medium 
sand, fine 
sand, and 
very fine 
sand. 
Per cent of silt, 
fine silt, and 
clay. 
3847 
5 
1 to 2 
Good 
93. 18 
3. 21] 
3858 
17 
. 5 to 1 
Fair 
94.01 
4.94 
3857 
T6 
3.5 
Very good 
84. 34 
12. 99 
■Set I 
3844 
2 
7 
Excellent 
80. 71 
13.81 
3851 
10 
3 
Good 
67.38 
25. 08 
3848 
6 
3 to 4 
do 
60. 71 
29. 34 
79. 69 
14.37 
3850 
9 
6 
Nothing 
29.39 
59. 39 
3854 
13 
6 
do r. 
37.98 
51.64 
► Set II 
3855 
14 
Very scanty ...... 
32 
57.93 
3856 
15 
6 
do 
31. 53 
56. 21 
Wheat soil. Plate 3, Bull. 5, Division of Agricultura 
Soils 
38. 07 
55.91 
