FIRST FLOOR 



NORTH 



11 

 *- { 109 



WEST 



^ 



108 



i 



fr— ^ 



EAST 



m 104 in 



SOUTH 



The models illustrating the development of a mollusk as shown in the life history of the 

 Gastropod Crepidu/a SLve exhibited in the Hall of Invertebrate Zoology, No. 107 of the Easl 

 Wing, first floor of the Museum building. 



[4] 



