rhe PREFACE, xlx 
In which we are affured that all 
Things are wifely adjufled in Num- 
ber, Weight and Meafiire, yet with 
fuch complex Circumftances as re- 
quire many Data from Experiments, 
whereon to found juft Calculations : 
But tho’ many of the following Cal- 
culations are founded only on fuch 
inaccurate Menfurations as the Na- 
ture of the Subject would allow of, 
yet may we thence fairly draw many 
rational Dediuftions in relation to the 
animal OEconomy. 
In which there is fo juft a Sym- 
metry of Parts, fuch innumerable 
Beauties and Harmony in the uni- 
form Frame and Texture of fo vaft 
a Variety of folid and fluid Parts, as 
muft ever afford Room for farther 
Difcoveries to the diligent Enquirer ; 
and thereby yield frefla Inftances to 
illuftrate the Wifdom of the divine 
Archited, 
a 2 
