C8o ) 
which was placed on the far Side of the Monftrous Head^ 
the other as ufual in other Calfs. It breathed equally 
at both Mouths, and had Communication with the fame 
Throat, but took its Nouri(hment only ax the perfed: 
Mouth : The under Jaw of the other being fo weak, 
that the Mouth al v^'ays ftocd open and driveli'd. It ap- 
peared on the Left fide to be a perfeft Calf, and look'd 
very lively, and was, at Three Days Old, as large and 
ftrong as ether Calfs ufually are at Ten Days or ^ 
Fortnight. 
IV. A Que ji ion in Mujick^ lately propofed to 
Dr. VVallis, concerning the Divifion of ths 
Monochord^ or SeSlion of the Mufical Canon x. 
With his Anfwer to it. 
Quefiion. 
TA KE a String of any Mufical Inftrumem, and divide 
the fame into two equal Parts^ and (top the String there j 
it fnall be an Eighth, which confillscf twelve Semi-tones. 
Hence it appears, that the Frets are nearer to one another 
toward the Bridge^ and wider toward the Nut or Head of a 
Viol. And that thsy decreafe or proceed in a Geometrical . 
Proportion. 
Quare^ How is it poffible, from the forefaid Hypothefis, to 
divide the other ii Semi tones^ in their due Proportion^ and 
to demon ftrace the fame. And whether the other Difiances 
affigned by Simpfon in his Compendium of Mufuk. (and Chapter 
cf Greater and leffer Semi- tones) are demonftrable from the. 
l^id Hypothefis> 
