20
Dr. Young's Experiments and Inquiries
| Table xi. | |||||||||||
| open. | stopped. | ||||||||||
| A | B | C | D | E | F | A | B | C | D | E | F |
| 4.5 | 4.1 |
0.7 8.8 |
8.8 | 𝄘 d* |
1 2 |
4.5 | 1.2 5.0 |
0.3 1.7 9.0 |
1.8 10.0 |
d | 1 3 5 |
| 9.4 | 0.8 2.0 5.0 16.5 19.0 |
0.3 8.0 18.0 20.0 |
0.9 8.0 18.0 20.0 |
f | 1 2 3 4 5 6 |
9.4 | 1.1 7.0 |
0.2 0.45 1.6 8.0 |
0.4 1.6 8.5 |
f | 1 3 5 7 |
| 16.1 | 0.8 1.2 2.2 3.4 4.0 6.5 |
0.4 1.0 2.2 4.7 10.0 |
1.0 2.2 4.7 11.5 13.5 15.0 |
g* | 2 3 4 5 6 7 8 |
16.1 | 0.6 0.9 1.6 2.5 6.0 |
0.4 0.65 1.1 2.4 4.8 7.0 |
0.6 1.1 2.4 4.9 9.0 |
d* | 3 5 7 9 11 13 |
| 20.5 | 1.1 4.5 |
0.6 0.8 1.9 5.7 |
0.8 1.9 5.7 |
b | 3 4 5 8 |
20.5 | 1.0 1.8 3.2 |
0.8 1.1 3.8 12. |
1.1 3.8 3.8 12. |
𝄘 c* 0 |
7 9 11 17 00 |
A, is the length of the pipe from the lateral orifice to the end. C, the pressure at which the sound began. B, its termination, by lessening the pressure; D, by increasing it. E, the note answering to the first sound of each pipe, according to the German method of notation. F, the number showing the place of each note in the regular series of harmonics. The diameter of the pipe was .35; the air duct of the mouth-piece measured, where smallest, .25 by .035 ; the lateral orifice .25 by .125. The apparatus was not calculated to apply a pressure of above 22 inches. Where no number stands under C, a sudden blast was required to produce the note.
