On the A?ibnal Calculus. 231 
and Gravel, whence it coo eafily increafes into 
a larger Size. 
1 1. And for the fame Reafon it (eems advi(e- 
able, chat when we feel the firfl: Beginnings 
of Uneafinefs in one Kidney, we fhould cake 
care to have that be, for the moft part, the 
uppermofl: Kidney, to try if haply by that 
Means, the firll beginning Sand may be wafli- 
ed away. 
II. It is to be fufpqRed that the firfl: Be- 
ginnings of Calculus in Infants, may be fre- 
quently owing to their laying much upon their 
Backs, as well as to their long retaining of U- 
rine in the Bladder while they deep much. 
15. I am fenfible that thefe may feem to 
feme. CO be very trifling Precautions 5 yet for 
the abovemencioned Reafons I cannot chink 
them fuch ; tho’ I am far from imagining that 
they will be an effedual Preventive for all ; 
yet as they may ppllibly be beneficial to fome, 
it will fure be worth the while to make fo ea- 
fy a Tryal, in a cafe of fo great Importance 
to our Welfare. 
14. Helmont (ays he was once afraid of lay- 
ing on one Side conflantly, left the Urine 
fliould not pafs freely from the lower Kidney 
to the fuperior Bladder, befides what Impedi- 
4 ment 
