To his Honoured Friend 
Daniel Colwall Efq; 
Fellow of the Royal Society. 
SIR, 
Othing can be more fit, than to dedi- 
cate a Catalogue of that SVfufieum 
to your Self, of which you are 
the Founder. You having, in your 
Devotion to the Hfoyal Society , offered 
up to them That fb noble an Hecatomb e. 
The truth is, I have herein profecuted, what the 
Ttyyal Society, by their Order for the making and 
publifliing of this Catalogue, had begun : they ha- 
ving done the fame , as with regard to Common 
life; fb to return that which is but Right to your 
Self, and that they might always wear this Cata- 
logue, as the Miniature of your abundant Refpeds, 
near their Hearts. 
Neither muft your Voluntary Undertaking for 
the Engraving of the Plates for this Work, be un- 
known. You having done this, not only out of 
refpedt to my Self ; but likewife in order to a Pub- 
lique Good; whereby you are a Benefaftor to all 
Ingenious Men. 
Befides the particular regard you had to the Royal 
Society it Self \ which feeming ( in the opinion of 
feme ) to look a little pale , you intended hereby, 
A 5 to 
