The CONTENTS. 
mat ics in the Univerfity of Edinburgh, and by him 
communicated to the Preiident of the Royal So- 
ciety } being an Extract from the Books of the 
Town-Council of Edinburgh, relating to a T) ifeafe 
there, fuppofed to be Venereal, in the Tear 14.97. 
420. 
VI. Some Account of the Infedl called the Frefh-water 
Polypus, before mentioned in thefe Tranfa&ions, 
as the fame was delivered at a Meeting of the 
Royal Society, by the Preiident, on Thurfday, 
March 24. 1742-3. 422. 
VII. An Account of a Book intituled , New Principles 
of Gunnery, containing the Determination of the 
Force of Gunpowder } and an Inveftigation of the 
refilling Power of the Air to fwift and flow Mo- 
tions ; by Benjamin Robins , F. R. S. as far as the 
fame relates to the Force of Gunpowder. 43 7. 
Printed for T.Woodward, and C. D a v 1 s, over- 
againft Grafs - Inn - Gate in Holbourn 5 Printers 
to the Royal Society. 1743. 
ERRATA. 
Philosophical Tranfaflions, N° 468. p. 344. 1 . 16. for refolved into a Force parallel to the 
Bafe, read , refolved into a Force parallel to the Ordinates, and a Force parallel to the Bafe. 
N° 469. p. 404. 1 . 5. from the Bottom, for fuch r. every, p. 407. 1 . 3. for Ruels r. 
Rules, p. 409. 1 . 4. for Divifors r. Denominators 5 1 , 6. for or r. the 5 1 . 7. for are r, 
being j 1 . 9 .for Arcs r. Areas. 
