Of 0 XFO %T)^SHI%E. 295 
4. A Diatefferon^ ov fourths, as DE to £F, Fig, 9. 3 to ^Vni- 
fons^ or 4 to 3 vibrat. 
5. A Ditone^ or greater thirds, as EF to FG, Fig, 10. 4 to $ 
Vnifons, or 5 to 4 vibrat. 
\ 6. A Semiditone^ or lefler thirds^ as FG to Gii/, Fi^. 11. 5 to 6 
Vnifons^ or 6 to 5 vibrat, 
7. A Diapafon with a Diafente, or twelfths, as //T to /TZ., 
F/g. iz. I to 3 Vnifons, or 3 to i vibrat. 
8. A Difdiafafon ot fifteentbs, as MA^to iV^?, F/^. 13. 1 to 4^^- 
. ;?i/c'«5-, or 4 to I vibrat. 
And fo for the reft, whereof the chief maybe expreifed on one 
line, Fig, 14. 
^AB. AC.ot AC.CG}^^ 
or AD, AG, are 3 
AC, AD, or AE. AG, 
AD. AE, 
AE. AF 
AF, AG. 
AD, AF, 
AC, AF, 
Where. 
5- 
4. 
6. 
I o. 
AB. AD, or AB. BE,') 
or AC, AG, y' 
AB.AE, or AB, BF,? 
or AB.CG, y^' 
AB. AF, or AB.BG, ij. 
AB, AG, 19, 
206, And thus much for his Principles, whence he goes on to 
fome fpecial or particular Propofitions, in order to demonftrate the 
late obferved Phenomena, which imniediatly follow. 
Prop. I. If two firings be tuned Vnifins AB, BC. Fig. 6, and 
either be touched with tbe hand or bow, the other willanfwer it-, 
by trembling at its motion. 
For the Air being put into an arched figure and motion by the ft:ring 
that is touched, rolls away to the other, which finding of a length, 
hignefs, znd ten/ion, that are the fame, or proportionable fji^^r //- 
lat. i.)it eafily (by the force it received from the touched firing') 
imprints 
