Royal Society. 467 
but they were all dead, and fomewhat lefs than the former* 
further he put the frog into a glafs with water, out of which it 
made its elcape and got away. 
7i;e Way of making feveyal Chin^L-vzrmihesy by 2)r, Wil- 
liam Sherard. Phil. Tranf. M° 252, p. 525. 
TAKE of crude varnifh do ounces, ordinary water do 
ounces, mix them well together, till the water difap- 
pears; afterwards put this matter into a wooden veflel, 5 01 <J 
palms long, and 2 or 5 broad 3 mix them with a wooden Spa- 
tula for a whole day in a fummer's fun, and for two in the 
winter 5 it is afterwards put up in earthen veffels with a blad- 
der over it , and this is the varnifh prepared in the fun. 
The way of boiling the oil of wood, called by the "Portu- 
gueze Azeite de "Pao : Take 20 ounces of oil of wood, 20 
drachms of that of the fruit ^ give them 5 or 6 boils, till they 
become a little yellow; let them cool, and put thereto 5 
drachms of powdered quick lime. 
To give the firit grounds called Camtfcia : Take fwines-blood 
and quicklime powdered, mix them well j lay this mixture on 
the wood, and when it is dry, fmooth it with a pumice -ftone. 
To make the black varnifh : Take of the varnifh prepared 
in the fun do ounces, (lone black allum (fuppofed to be a fort 
of copperas) diflblved in a little water 5 drachms, 70 drachms 
of lamp-Gil, called by the Portugueze Azeite de Candeaj, it is 
prepared in a wooden veflcl, as the varnifh prepared in the 
fun, obferving to put in the lamp-oil at two leveral times. 
To mike the varnifh of the colour of pitch : Take of the 
oil of wood crude, called dePao, 40 drachms ; of the lamp-oil, 
called de Candea, crude, 40 drachms ; it is prepared in the fun 
in a wooden veffel, as prepared varnifh. 
To make red varnifh: Take 10 drachms of cinnabar, 20 
drachms of varnifh prepared, a little of the oil de Candea^ or 
lamp oil, mix them well together. 
To make yellow varnifh : Take of the yellow colour 10 
drachms, 50 drachms of prepared Varnifh, with fome lamp-, 
oil. 
To make varnifh of a mu{k-colour: Take of the^ed var- 
nifh 10 drachms, of the black varnifh 4 drachms 5 mik them 
well. 
N n n £ 7« 
