ADVERTISEMENT. 
lic, have induced him to believe he may fill be ufefel, 
and though he cannot, confiftently with the conditions 
of this undertaking, extend it further at this time, fhould 
a fufficient nember of new and valuable fpecies occur, he 
will certainly be tempted to tranfgrefs, and make fome 
additon to the prefent fele€tion. 
ALPHA- 
