equal to the halfe of P A or of p A v 5 nor yet q p equal to 
the halfe of qy , nor q p A to the halfe of q y A-, f the Tri- 
migU q y A will he equal to the Se6iar L C A ( becaufe A L p y is 
common toboth andlike tothe7riangleC C ^iandafartoftt-^ 
which he thought to have been impoflibk. 
Note 
WHat inN', 54- p. 1077. \nih^ AnfwJo i, is faid 
of the Obfervation of rrmrs /is to be undeiftood , that 
tlie Workmen think fo, th:^t they make more Salt with the 
fame quantity of brine 3 atthcFul Moon, then at other times, 
though really they do not, as the Anfv^erer Judgcth by his oh- 
Jerv. inN% 5:5. p. 10^4.- Who hath fince advertised, that *tis 
poflible at times , when the Pit hath been much drawn firft, that 
then, ifwithoiitintermiflion they go on walling till the Fu/ly 
they may make at that time more Salt , than at another time, 
it being well known, thar much drawing the Pit, ftrcngthens 
che Brine^ 
LONDON 
printed by T. iV* for fohft Afartyn^ Printer to the Rojal Society^ 
and arc to be fold at the BelU little without Tmpls- 
Bar , 1670. 
