Bost Soc Nal Hist V-1 N 



Plate 8. 







' // 



^? 



4 



\' 







\ 



MAP 



SHOWTNO niK CENTIMES AND 

 ANNUM. iSRKAS OF DISTRIBUTION OF 



PIEUIS RAPAE 



IN 



NORTH AMERICA 



FROM ITS INTRODUCTION IN THE ^:AHT IN 

 1860 TO 18 8 (i. 



Area of ebistnbution. ofdw uuiufe/iiMs ■^ftxf'S of 

 Pii&^s, CiCLsify- conJbu^'ied. mtJt P. mptie, Ovt more 

 douht/itLporUort with mare- ope/t linns 



isDiBn&CoI.ilh 



