< 73^ ) 
mention of ihcl^ivcr TimavuSy that Ebbs and Flows as 
the Sea does. Which wonderful Phenomenon is better 
explained by the Tranflator, than (eems ever yet to have 
been accounted for. 
Chap. 4. Treats of the antient State of the Country 
on this and the other fide of the River Po, 
Chap, 5. Treats of the Nature and Condition of this 
hidden Spring. 
Chap, 6. The Progreis and End of the Waters is inqui- 
red into, and a Reafon is given of the u(e of things, 
which are obftrved in the digging of the Wells. 
Chap. 7. Contains very curious Experiments about 
the Motions of Fluids tending highly to illuftrate the 
Subjeft in Hand s and in this he gives Proof how much 
thoie that take Pleafure in framing Hypothecs, might 
be affifted in making more rational Conjedures than 
they do, if they were well acquainted with experimen- 
tal Philofophy. 
Chap, 8. Contains many Remarks about thetxctllen- 
cy and goodnefs of the Wells of Modena. 
With the Book tranflated, are publiftied (everal Ob- 
fervations and Experiments by the Tranflator, Dr. Roh. 
St. dairy who formerly was Operator and ufed to try 
Experiments for the Honourable Robert BoylCy Efq, 
ERRATA. 
fAG. 723. 1. 31. for have read half. p. 724. /. 5. for Kerf read Nerve, 1. 14. 
for ^arts read Lines, 1. 30. for Parts read Lines, 
London : Printed for Sam Smithy and Berj, Walfordi Printers 
to the Royal Society, at the Princes Arms in St. PWs 
Church-Yard 1697. 
