52 



26.585 

 22.11 

 71.43 

 .173 

 9.83 

 8.51 

 42.08 

 6.97 

 .08 

 .39 

 .6 

 .8 

 .29 

 .59 

 .025 

 .303 

 1.75 

 .06 

 .63 

 1.35 

 5.17 

 7.59 

 7.89 

 5.3 

 1.17 

 .06 

 1.41 

 .03 

 1.45 

 .016 

 .078 

 .11 

 2.3 

 .3 



.016 

 .07 



2.6585 

 4.422 

 17.856 



.0173 



.983 

 1.703 

 8.416 



.697 



.004 



.0078 



.012 



.016 



.01933 



.0197 



.025 



.0606 



.175' 



.00667 



.063 



.135 



.517 



.69 



.3945 



.265 



.0117 



.06 



.0705 



.0025 



.029 



.004 



•0039 



.01375 



.023 



.003 



.004 



.00467 



Pupa minutissima (No. 46) is the least of the European land shells 

 with Avhich we are acquainted. Pupa milium (No. 45) is the least 

 of the species which inhabit the United States. Three of the species 



