toUuSta. 



L 



A 



SYNOPSIS 



OF THE 



FAMILY UNIONISE 



BY 



ISAAC LEA, LL.D., 



VICE-PRESIDENT OP TUB AMERICAN PHILOSOPIIICAL SOCIETY ; 



I.ATK PRESIDES! OP THE ACADEMY OF NATURAL SCIENCES OF PHILADELPHIA : 

 HEMIIRR OP THE ZOOLOGICAL SOCIETY OF LONDON, ETC. ETC. 



FOURTH EDITION, VERY GREATLY ENLARGED AND IMPROVED. 



PHILADELPHIA: 

 HENRY C. LEA. 



1870. 



