38 SySTE3I OF LAMARCK. 



CHAPTER VI. 



" Lucy and I have been collecting a variety of 

 species," said Charles to his father, "since our 

 last lesson in conchology. We have also seen 

 several large collections of shells, one of which 

 was arranged according to Lamarck. I was 

 much pleased with the new genera taken from 

 Buccinum, Bulla, Turbo, and others. 



" We are desirous of gaining information on 

 this new system, if you can spare a little time 

 to attend to us." 



" Willingly," replied Mr. Elliot ; '' I antici- 

 pated such a request, and have been making 

 lists of the genera belonging to each system ; so 

 that, upon meeting with a new genus, you may 

 be able to ascertain with some accuracy its place 

 in the old arrangement. 



" Lamarck founds his system upon the struc- 

 ture and form of the animals, so far as they have 

 been ascertained, and with which the exterior, or 

 shell, must necessarily coincide. The concho- 

 logy occupies the three last classes, and one 

 order of another class, in the well-known work 

 which I have before mentioned to you. 



