THE ARTESIAN WATER SUPPLY OF EASTERN FLORIDA. 121 
the first case, is nine ancl one third inches, one-third of the dif¬ 
ference between the readings in the table for nine and ten inches 
must be added to the former to give the right result. In case one 
measures the flow of his well according to both methods, he may- 
think that they should correspond, but such is not the case. In the 
vertical discharge, as there is less friction, the flow will be larger, 
so also differences will be found according to the length of hori¬ 
zontal pipe used in the second case. The longer the pipe, the more 
friction and less the flow. 
“As pipes are occasionally at an angle, it is well to know that 
the second method may be applied to them, if the first measure¬ 
ment is taken strictly vertically from the center of the opening, 
and the second from that point parallel with the axis of the pipe to 
Tables for Determining Yield of Artesian Wells 
L Flow from Vertical Pipes 
IL Flow from Horizontal Pipes 
r Height of Jet 
Discharge in Gallons per Minute 
from Respective Pipes of Diapi- 
eter given in Inches. 
1 
1% 
1 
iy 2 j 
2 
3 
% 
3. 
96 
• 3.2 1 
8. 
1 
9i.| 
1.5. 
■ 1 
:< 
30 . 
6 
l 
5. 
,60 
8.7 
12. 
6 1 
22. 
4 
51. 
4 
2 
7. 
99 
12.5 
18. 
o 1 
32. 
0 
71. 
9 
3 
9, 
.81 
15.3 
22. 
1 1 
39. 
2 
88. 
3 
4 
11. 
.33 
17.7 
.25. 
5 1 
45. 
3 
102. 
0 
f 
12. 
.68 
19.8 
28; 
5, I 
! 50. 
,7 
113. 
,8 
6 
13. 
.88 
21.7 
31. 
2 
55. 
5 
124. 
9 
:7 
. 14. 
.96 
2£.6 
33. 
7 
59. 
8 
134. 
,9 
8 
16. 
.00 
25.1 
36. 
0 
64. 
,0 
144. 
,1 
9 
17 
.01 
26.6 
38. 
3 
68. 
:o 
153. 
,1 
io 
17. 
,93 
’ 28 . 1 
40'. 
3 
71. 
,6 
161. 
,3 
11 
18. 
.80 
29.5 
42. 
3 
75. 
,2 
169. 
3 
12' 
19. 
.65 
30.7 
44. 
2 
78. 
6 
176. 
.9 
' 13 
20. 
..46 
31,8 . 
45. 
9 
81. 
,8 
. 184. 
,1 
14 
21, 
,22 
33.0 
47. 
6 
84. 
9 
190. 
9 
15 
21. 
.95 
34.2 
49. 
3 
87. 
,8 
197. 
,5 
16 
22. 
.67 
35.2 
50'. 
9 
90. 
,7 
203. 
,9 
17 
. 23. 
.37 
36.3 
52. 
5 
93. 
.5 
210. 
.3 
18 
• 24. 
.06 
37.‘5 
54. 
,1 . 
96. 
.2 
216. 
..5 
19 
24 
.72 
38.6 
55. 
6 
98. 
.9 
222, 
.5 
20 
25 
.37 
39.6 
57. 
0 
101. 
.6 
228. 
,5 
21 
26 
.02 
40.6 
58. 
,4 
104. 
.2 
234. 
.3 
22 
26. 
.66 
41.6 
59. 
9 
106. 
.7 
240. 
,0 
23 
| 27, 
.28 
42.'6 
61. 
,4 
109. 
.2 
245. 
.6 
24 
,'27, 
.90. ] 
43.5 
62. 
8 
111. 
.6 
251. 
,1 
25 
-28 
.49 
44.4 
64. 
,1 
114. 
,0 
2’56. 
.4 
26 
29 
.05 
. 45.3 
65. 
,3 
116. 
.2 
261,. 
A 
27 
29 
.59 
’ 46.1 
66. 
A 
‘ 118. 
.2 
266-. 
;i 
28 
30 
.08- 
46.9 
67. 
.5 
• 120. 
.3 
270. 
.4 
29 
■ i 3 CL 
.55 
t 47.5 
68. 
5 
1 121. 
.9 
27,4'. 
.1 
301 
30 
.94 
. 4'8.2 
69. 
.4 
| 123, 
.4 
.277. 
. 6 
36 
- 34 
.1 
r 53.2 
76. 
.7 ! 
I 136. 
.3 
306, 
.6 
48 
39 
.1 
61.0 
88. 
,0 
1 156. 
.5 
352. 
.1 
60 
,43 
• 8 ; 
68.4 
; .98, 
.6 
I 175, 
.2 
•394, 
.3 
12 
48 
.2' ■ 
.75:2 
'168, 
.<r 
! 192, 
.9 
484, 
.6 
84 
51 
.9 
81.0 
116. 
.8 
| 207, 
.6 
467, 
.0 
96 
55 
.6 
86.7 
125. 
,0 
222. 
.2 
500. 
.0 
108 
58 
.9 
92.0 
132, 
.6 
1 235, 
.9 
530, 
.8 
120 
6272“ 
-“9-8.0 
139. 
.9 
I 24-8 . 
;7 
5-59, 
132 
65 
.1 
102,6 
.. 146. 
.5 
| 260, 
.4 
585, 
.9 
1441 
68 
.0 
10614 • 
1-5 3-, 
y 272 
; 2> 
61*2 
.'5 1 
o3>". 
C'H 
. o© 
tn -M 
o to 
■a 
Flow in Gallons per Minute for 
Pipe's— 
1 inch in Diam. 
6 in. 
12 in. 
2 inch in Diam. 
I 
in. I 12 in. 
In. 
level. 
level. 
level. 
level,. 
6 
7.01 
4.95 
27.71 
19.63 
7 
8.18 
5.77 
32.33 
22.90 
8 
9.35 
6.60 
36.94 
26.18 
9 
10.51 
7.42 
41.56 
29’. 45 
10 
11.68 
. 8.25 
46.18 
32.72 
11 
12.85 
9.08 
50.80 
, 35.99 
12 
14.02 
9.91 
55.42 
39.26 
13 
15,19 
10,73 
60.03 
42.51 
14 
16.36 
•11.56 
64.65 
45.81 
15 
17.53 
12.38 
69.27 
49.08 
. 16 
18.70 
13.21 
73,89 
52.35 
17| 
19.87 
14.04 
78.51 
55.62 
18 
21.04 
. 14.86 
f83.12 
58.90 • 
19 
22.21 
15.69 
87.74 
62.17 
20 
23.37 
16.51. 
92.36 
65.44 
21 
24.54 
17.34 
96.98 
68.71 
22 
25.71 
18.17 
101.60 
71.98 . 
23 
26.88 
18.99 
106.21 
75.26 
24 
28.04 
19,82 
110.83 
78.53 
25 
29.11 
20:64 
115.45 
81.80 
26 
30.38 
21.47 
120.07 
85.07 
.27 
31.55 
22.29 
124.69 
88.34 
28 
32.72 
23.12 
129.30 
91.62 
29 
33.89 
2.3.95 
133.92 
■: 94.89 
30 
35.06 
24.77 
138.54 
98.16 
31 
36:23 
25.59 
143.16 
, 101.43 
32 
37.40 
26.42 • 
147.78 
104.70 
33 
38.57 
27.25 
152.39 
107.98 
34 
39.64 
'28.08 
157.01 
111.25 
3.5 
40.45, 
28.64 
.161.63 , 
, 114.52 
36 
• '41.60 
56.46 
166.25 1 
117.79 
. - 1 Coritint 
le tiy' addi 
1 . 82.. . 
ng for eacl 
| - 
1 / inch— 
1.15 
1 
|.• 1141.624 f 
, •• .3.27 , 
; 
