482 REVIEWS AND BOOK NOTICES. 
of the adjoining provinces not met’ with during the Survey; a 
chapter on the ‘‘characteristic features of the Avifauna of the 
Great Basin,” and on ‘‘the distribution of its local Avifaune.” 
It will also treat of ‘ geographical variation in color and propor- 
tions ,” of “ hybridism” and of ** certain so called ‘ individual’ vari- 
ations.” Also a “systematic catalogue of the species obtained 
and observed during the progress of the survey” will be given, 
and a ‘‘ comparison of the Avifauna of the Truckee Valley,” in 
spring, summer and winter, with other matter of a similar ¢ 
acter. The biographical section will contain an account of the | 
habits, etc., of all the species observed (some 220 or more) with 
measurements of specimens and other notes. The Appendix, as 
previously stated, will be devoted to a monograph of the N 
, 
CEEA P EN E EE OS TE 
hajina r 
American Raptores. This is a work that has engaged Mr. Ridg- 
way’s attention for several years, and in which we are promised & 
new classification of the Falconide, materially different from that 
and based almost wholly on osteological grounds. The genere 
and subgeneric characters will be illustrated by accurate outline 
figures, and the species of all the Raptores will be distinguished 
not only by full descriptions of all their known stages of plumag®s 
but synoptically in tables, in which they will be compared with all 
their exotic allies. 
The greater part of the work is said to be already in type, and 
we look forward to its publication with unusual interest.—J. Å. å. 
Pror. Sxow’s List or Kansas Brrps.— For one, Lies 
press, through the Narurauisr, my obligations to Prof. Snow 
his list of the Birds of Kansas, and to commend the principle ne 
which he has scrupulously acted — to mention no birds in reg on. 
the occurrence of which in the state, he had not positive — ia 
Such local lists, at least in my opinion, are only of vam ye 
thus made. I am glad to know that at least one compiler of # 1° 
list has been able to resist the besetting temptation to gone? 
catalogue by mere guess work, or by giving us a redul see the 
birds that “probably will be” or “ought to be found” within ” 
prescribed limits. So far as his list went, it was honest pii 
ble, and one that can be easily increased by addenda aS °% ri 
arises and the knowledge is given. But it has been my “^ 
i is irretrievable 
that the error of including species that never occur, 18 
Swainson’s warbler seems destined to figure forever | 
