10 



chusetts were included, embracing nearly all the additions 

 made between the years 1870 and 1875, but generally 

 without giving the date of capture or place of record. 

 Of this list of three hundred and thirty-six species twelve 

 are either explicitly or inferentially given as not found in 

 Massachusetts ; fourteen others are regarded in the fol- 

 lowing list as either purely nominal or as merely varietal 

 forms of other species also occurring here ; one is an 

 introduced species, and another (" Thaumatias linncei") I 

 regard as improperly included ; leaving three hundred and 

 eight that may be regarded as birds of Massachusetts, 

 though not of course always necessarily so implied by the 

 phraseology of the list. 



The folio wing tabulated summary shows at a glance the 

 number of species attributed to the state at different 

 times since 1833, together with the number authentically 

 recorded, the number still unconfirmed, and the number 

 of merely nominal ones : — 



HISTORICAL SUMMARY. 



3 Embracing, among others, varietal forms here regarded as improperly ac- 

 corded full specific rank. 



♦Inferentially, through additions to Dr. Emmons's list. 



6 Inferentially determined. 



6 Given as probably occurring, but not as yet fully confirmed. 



Tins four extirpated = 320. 



