[ S$p J 
An Addition to Dr. Hales’s Paper,/. 270. by 
C. Mortimer. 
TT?i^L a r rthe i ire ; W0fks had been play'd 
oli in the Turk on account of the late 
Pwpofe IT 3 ° VCr f he Bui,din § reeled for that 
Scheme conl Wa n 8 r at l y P i Cafcd t0 fee the Doctor’s 
upon that n™r d by / he Pracdceof the Engineers 
Trains were f ca lon ’ Po £ f he Room, in which the 
the Cnf dlCl ’ and w bieh was immediately under 
the Gratings upon which the tfooo Rockets retted 
tl W fi ne rn £ u r° m \ had the Flo °r covert o V « 
th fine lifted Gravel about an Inch deep, and the 
Wafh wh7ch W I roo d k°f VCr T With l diny fort of "hite 
> which I took for Lime finely powder'd and 
mix d up with Size and Water, and^one two or 
Jhree times over. Both Root and Wall were of 
Printed for C. Davis, over-againft Grafs Inn Cat* 
m"S R,KIER t0 the S ociety, 
