THE STANDARD 



NATURAL HISTORY. 



EDITED BY 



JOHN STERLING KINGSLEY. 



Vol. I. 

 LOWER INVERTEBRATES. 



lUustvatttX 



£V FIVE HUNDRED AND ONE WOOD-CUTS AND TWENTY-TWO 

 FULL-PAGE PLATES. 



Boston: 



S. E. CASSINO AND COMPANY. 



i88c;. 



