The Epifile Dedicatory. 
fon of that eminent and happy Worth, which, as it was 
too good,to fear envy ; fo is it too great, to need an Elogie. 
I , You were pleafed to commit to Me, 
the further profecution of this Work ; the Beginnings 
whereof, were by Your Order formerly made publique. 
Had I confulted my own Abilities altogether, I fhould 
fearcely have ventured upon it; feeing very little, for 
which I could think well of my fel£ faving, That I had 
learned, upon good grounds, to think of You with greateft 
Honour. But I alfo confidered, That to infit hereon too 
much,might be a reflection upon Your Judgments,who had 
thought fit to make choice of Me. And, That You were 
not more the Patrons of Wit, than of Induftry ; and of 
All, who fhall endeavour to find out, or to confirm the 
Truth of Things. Wichal, I looked upon Nature, as a Trea- 
fure fo infinitely full; that as all Men together, cannot ex- 
hauft it ; fo no Man, but may find out fomewhat therein, 
if he be refolvedto Try. 
In compliance therefore with Your Commands, I have 
hereunto devoted a very confiderable part of my Time. 
Thefeadding force to my own Defires,of being fomewhat 
inftrumental to the Improvement of Medicinal, and other 
wholefom Knowledge: if peradventure, as we increafe 
herein, we may become better, and more happy. As to 
which Improvement, though I could not hope; yet, I 
would not difpair. I have already prepared the Soil, and 
made fome Plantation : what remaineth behind, and the 
Vintage of the whole, will depend much upon the con- 
tinued Influence of Your Beams: for how unpromifing 
foever the Stock may be; yet the Fruit cannot but be 
fomewhat matured, upon which Zoz are pleafed to fhine. 
I am alfo confident, that the fame Nobilty and Goodneß, 
which accept the endeavours, will likewife pardon the 
faults, of, 
My Lord, 
Your Lordfhips moft humbly 
and moft fincerly 
coat devoted Servant 
73. 
NEHEMJAH GREW. 
THE 
