( <*37 ) 
or Empire) of Monom&tapa y he has this memorable PaP 
(age, The Nati ves never live long, by reafon of the badnefi 
of theWaters in the Country, For at the Age of Twenty 
Five they begin io^be Drop ft cat, fo that 'tis a great wander 
if any among them live above Forty Tsars. 
What Monfuur Tavernler delivers being taken for XVHL 
granted, it feems very probable, that thefe People may- 
be much reliev'd, and be brought to live as long as 
other Nations, if they had fo compendious away as that 
of the Patentees, to provide themfelves plentifully with 
Waters, whole Crudity is corrected , its grofier and 
heavier parts feparated, and its brackiftinefs deftroy'd by 
the Fire, as its Action is regulated and help'd by their In- 
vention. 
The Experiment mentioned in this Paper was try*d at 
a meeting of the Royal Society, Feb. 17. 169J: by Dr„ 
Slow, with a Succefs anfwerabie to the Aflertions of 
the Honourable Author, and that a drop or two of Spirit 
of Salt mixed with common Water, would be by the 
fame Method difcovered. 
At another meeting of the {aid Society on the ad of 
March following, Dr. Hooke read a Lediure concerning 
another Method of his own for the discovering the fmal- 
left quantity of Salt contained in Water, from a Princk 
pie of HydroHaticks ; and after his Difcourfe thereof, 
he producod the Apparatus whichhe had prepared to ex- 
hibit the lame before the Perfons then prefent * and it 
was there ftewn, that the lufkument he apply *d to that 
Scrutiny did very evidently difcover the Mixture of a 
aooo th part of Salt added to common Water , and 
would eafily have detected half that quantity of Salt ad- 
ded to an equal quantity of Water, as was judged by 
thole, that obfervcd theSaccdTs thereof^ 
The. 
