of the powe 

 . 4. The fit 



umber. The abso 



rith connected. ■',. The dini ivnce of the vow- 

 ■latioii is a result of the power of changing the 

 cavity. The difference- <.f the absolute pilches 



. ?Iie volume ar.d size of the mouth 

 it partial tone is always the strongest in clang; 



ordinal number increases ; exceptions indie 

 boundary of the consonant region. 6. The 

 tones decreases more slowly the nearer tin 

 fore more quickly the duller this is. 7. 1 

 is higher the clearer, and deeper the dullc 

 The variations of the intensity, in consequ 

 the characteristic pitch, are greater the full 

 slight variations indicate the nearness of th 

 All the vowels admit of being sung within 

 human voice; but the dull speak in very 

 deep, positions. 10. A little attention on] 



u-y'theu : 



i.—Pogg. 



\ Spectrum.- M. E. 

 s of the spectrum by 



.:- ' 



phosphorescent hexagonal blend 

 rt is strongly luminous, though 

 than the sulphides of the alcalii 



ear J "ul7ich M. Becquere 



has called A } an 



i group of four hands or li 

















rked borders, especiadv on 





'.,gth>oi'it. UNoedge-'ar, 





traction spectrum was too 



small, the waved 



