LESSONS ON SHELLS, 



AS GIVEN TO CHILDREN 

 BETWEEN THE AGES OF EIGHT AND TEN, 



IN A PESTALOZZIAN SCHOOL, 

 3lt CDijeam, Sump, 



BY THE AUTHOR OF "LESSONS ON OBJECTS." 

 ILLUSTRATED BY TEN PLATES, DRAWN FROM NATURE. 



THIRD EDITION. 



SEELEY, BURNSIDE, AND SEELEY, 



FLEET STREET, LONDON. 



MDCCCXLVI. 



