752 



of the same iiistrument these curves were snhsef|iiently magnified 

 300 times and registered on a smoked t\y under. P'ig. 9 shows part 



Fig. 8. 



of these curves. The upper and lower curves represent the o-souiid 

 in "b9t", pronounced in a low voice in 4he former and loud in the 

 latter. The curve in tlie middle gives " cound in „hod" The differ- 

 ence between the two sounds is clearly revealed in this way and 

 can be easily put, inio ligures. The curve ot' o is much the same 

 as that which characterizes ihe aa-sound. 



After a considerable and constant difference has thus been 

 ascertained, it may be desirable to get an idea of ihe circumstances 

 in which o and o occur in Dutch. 



Fig. 9. 



