196 Mr. C. Tomlinson 



tinguishing characters and peculiarities of the figures were 

 preserved. One remarkable coincidence was observed in 

 the case of B flat, which in the first set yielded three varieties 

 of figure, and which in the second yielded one figure com- 

 posed of the peculiarities of all the three varieties in the 

 first set. In some cases where four fans [fig. 3] enter into 

 the composition of the figure, the fans seemed to revolve, 

 while the barley-corn shaped figures and reflected edge 

 were stationary, thus, giving figures composed of fixed out- 

 lines and moving super-positions. 



80. It will be understood, that, at present, we by no means 

 pretend to support the proposition, that every constant 

 musical sound is the generator of a constant figure. Our 

 results, at present, can be taken scarcely even as approxi- 

 mations to the elucidation of the question. The present 

 paper will shew something of our progress, as also the 

 doubt and difficulty in which this part of the inquiry is at 

 present involved. We hope, however, at some future period, 

 to reduce these figures to a system as perfect, and certainly 

 more beautiful in its results, as that which regulates the 

 figures of Chladni. 



81. It has been before stated (20), that the reflected edge 

 of the glass may be seen in the mercury during vibration, 

 thrown into a series of nodes and ventral segments. Such 

 a case is represented in 



Fiir. 1. 



which seems to present the fundamental figure of all that 

 have been obtained, the reflected edge entering more or less 

 into the composition of the figures. 



