SOME ACCOUNT 
OF THE 
SIREN LACEUTINA, 
AND OTHER SPECIES OF THE SAME GENUS 
' OF 
IN A LETTER FROM PROFE^OR 
BARTON, 
OF PHILADELPHIA 
TO MR. JOHN GOTTLOB SCHNEIDER, 
OF SAXONY. 
PHILADEPHM : 
JESPER HARDING, PRINTER. 
18 S 1 . 
