PREFACE. sa 
manufactures, relative to this fingle article, 
demand our care for their extenfion and im- 
-provement; efpecially as the maintenance of 
thoufands depends on thefe important branches 
‘of commerce; yet thefe may be enlarged, 
by difcovering new properties in animals, or 
by the-farther cultivation of thofe already dit- 
covered. Thefcience of Zoology is requifite 
for each of thefe; and if we reflect but a lit- 
tle on the unwearied diligence .of our rivals 
the French, we fhould attend to every fifter 
{cience that may any ways preferve our fupe- 
ooagthy in manufactures and commerce. 
‘Domettic economy isan object of equal 
confequence; andthe author * of the Calendar 
of Flora has eftablifhed the ufes of Zoology 
an this particular, with undeniable evidence. 
This excellent writer has united a happy in- 
vention, with the moft folid judgment, and 
certainly merits the higheft commendations, as 
afriend of human kind. Our ingenious coun- 
tryman, Mr. Stvlhngfleet, in the Gune year has 
purfued almoft the fame plan as far as his 
time would permit, with equal fuccefs, and 
manifeftly proved the utility of the project, 
ain a learned difcourle prefixed to his work +, 
If then Zoology can fuggett fo many hints 
‘towards enlarging and iunproving our manu- 
factures and agriculture; we fhall not think 
ourtime mifapplied, in offering tothe publick, 
* Ylex. Mal. Berger. 
+ Swedifh tracts, tuanflated from the amen. Acad. 24 Edi- 
tion. 
the 
