Royal S o c i e ty. 247 
16., that is if X tJ = tS — |: And the lefTer tone, that of lo 
to 5>, or 20 to 18, may be in hke manner divided into that of 20 
to r (;, and that of 19 to 18 5 that is Tg X i^ =: f f zz: -*° ; Which 
diviiions of the greater and lefler tones anfwer to what is wont to 
be defigned by flats and /harps : So that by this compoiition of 
thele eight notes, la^fa^fol, la^ mi^fa^ fol., la^ their ratios ftand 
thus- that oflayfa^ or mi^fa^ is as k^ to 15 • that o^ fa^fol^ as 
10 to 95 and that of /(?/, /^, as 9 to 85 {ot elle that ^^ fa^foly 
as p to 8, and that ofyo/, /^, as 10 to 9) that of la^ mi, as 9 to 
8 5 and if either of the tones, greater or leiTcr, chance to be di- 
vided by flats or fliarps into what is called Hemi-tones, their ra- 
tios are to be luch as is already mentioned : There may be a like 
divilion of a fourth, or T)iateJJaron into two near equals- and 
of fome others of thefe into three near equals j which might be 
of ule for what they were wont to call the Chromatic, and Enar- 
moriic raufick ; but theie Ipecies being long flnce laid afldc, there 
is now no need of thefe divifions in our modern muHck. 
Mifcellaneous Experiments; by Sir Rob. Southwel. Phil. 
Tranf. I\° 298. p. 87. 
FO R red, take TinBura rofarum fix fpoonfuls- for a 
deeper red, fyrup of pomegranate flowers, one fpoonful3 
either of thefe to be mJxed v/ith five fpoonfuls of ordinary wa- 
ter : For violet, take one fpoonful of fyrup of violets to five of 
water- then to change the rofe colour into a deep green, take 
oil g( tartar per dellquium, and with it wafli the infide of the 
glafs, leaving a few drops at bottom, and then pour in the faid 
rofe tindure, and it will change : To make the high red black, 
difloive half the quantity of a walnut of fal armoniac in a glals 
of v;ater, pour all out to three or four drops at bottom, if the 
faid red be put to it, it becomes as black as ink : To make the 
violet red, wafli the glals with the fpirit of vitriol in the man- 
ner aforefaid, and pour into it your violet water: To make 
red wine as yellow as lack, lleep brafii wood for 24 hours in 
white wine, or elfe in ordinary water, till it looks red, and 
pour the fame into a glafs wafhed with vinegar, it turns pre- 
fenriy yellow ; to make this yellow white, take Styrd% Cain- 
mita, and benjamin half an ounce of each, pulverize and iteep 
this in four ounces of jiqua Vitce, a {^^^ drops of this will 
turn the liquor white; note, this makes the lac Vlr^inis for 
the common wafh : To make the hands and face black by 
waihing them in clear water, beat galls into a very fine pow- 
der. 
