A. M. Mayer—Researches in Acoustics. 177 
taneously developing in the flame the serrations of the: proper 
note of a resonator and those of its octave are only produced 
when the fundamental sound is intense. 
(7.) The Curve of a Musical Note, formed by combining the sinu- 
soids of its first six harmonics ; and the curves formed by com- 
bining the curves of musical notes corresponding to various 
consonant intervals. 
We have already seen that any composite vibration, which 
produces in us the sensation of a musical note, can always be 
reproduced by the simultaneous production of a certain number 
of the simple sounds of a harmonic series, provided these sim- 
ple sounds have the proper relative intensities. Therefore to 
obtain the resultant curve corresponding to a musical note, we 
draw on one axis its harmonic components with their proper 
wave-lengths and amplitudes, and the algebraic sums of their 
corresponding ordinates are the ordinates of the required 
resultant curve. 
3. 
Curve of a Musical Note ; being the resultant of the simple vibrations of tts first six 
os : 
Am. Jour. Sc1.—Tuirp Serres, VoL. VIII, No. 45.—Sepr., 1874. 
12 
