sot 105 



So also in echoes, the sound is accumulated at the point of 



obstruction, and must necessarily come buck wi.hou 



Hiiinui beings an; endowed wiiha great amount of sympathy 

 and thus will naturally laugh, or cry, or dance, jn.4 as tho 

 sounds they hear impel them. If human beings, who an- only 

 made up of a conglomeration of atoms, should h 

 is it not likely that each individual atom is ; Iso 

 possessed of it? If a man should uel impelled to dance 

 while under the influence of music, why should not tho 

 sympathetic atoms in a flame cause it to d^m-e also 1 



There are many of the experiments relating to sound not 

 easily to be explained, and many theories scarcely admitting of 

 demonstration, but we think thai; fewer difficulties will pre.-.-nt 

 themselves by the explanation we have j-iven, l ' K u '.>' an y 

 other. 



Prof. Tyndall ^ely delivered a lecture at the Royal 

 Institution, on Sound, giving an account of numerous e:,peri- 

 ments made at the South Foreland, 1 "upland, with steam 

 whistles, trumpets and cannons, in order to determine the 

 distance at which sounds could be heard at sea. The result of 

 these observations is a New Theory of Sound, and it just tends to 

 show how much dependence is to be placed on any ilieo'j of 



abstruse science, where the imagine Hun is allowed comiderablo 







latitude Jio permanent basis of natural s. it-nce liein^ established, 

 which would enable any one to prove or disprove any startling 

 assertion. 



The. theory is not complete, 1 ^ut it is to the ellVvt, that the 

 imagination haa to picture vapour from sea and land, rising in 

 layers; these layers presenting "reflecting surfaces" to the 



