164 Scientific Proceedings, Royal Dublin Society. 
The following are examples :— 
Trigonometrical. Incompatibility. 
Perpendicularity. 
pie aw) AG NA eee 
Tn the second class of words, that is when the consonant action 
changes, the position of the organs of the mouth at the end of 
one syllable is not suited to commence the next, and a change of 
action has to take place which requires more time, 
As in ob-tain, sub-tend, sack-but, cap-tain. 
ob-tain. sub-tend. 
i Se 
sack-but. cap-tain. 
In this jointing there is in effect a suppressed syllable, which, 
if inserted by making the words 
ob-bit-tain, sub-bet-tend, sack-keb-but, cap-pet-tain, 
or 0b-i-tain, sub-e-tend, sack-e-but, cap-e-tain, 
makes very little difference in the length of the word. 
There are many words in which this broken joint in the sylla- 
bication is bridged over by the introduction of the letter s, as in 
“ extinct,” “abstain,” &c., in which cases the ‘s’ takes the place 
of the missing syllable, and appears as a syllable in the diagrams, 
abstain. 
BI WARNS 
oy x: 
It also appears that although change of consonant action during 
the pauses occupies more time than when making the joint by 
repeating the consonant, yet that changes of consonant action 
made during a vowel sound expedite and facilitate articulation ; 
so that syllables commenced with one consonant and ended with 
another are more easily pronounced than when begun and ended 
with the same consonant. 
thus pittip pittip is easier to pronounce 
than pip pip pip pip, 
or tet tat tit tit. 
extinct, 
