REVIEWS AND BOOK NOTICES. 547 
cumulated so great a mass of material as to necessitate its publi- 
cation, forming the well-known ninth volume of Pacific Railroad 
Reports. This was almost entirely technical, and limited to clas- 
sification and description. Since this date many new species have 
been discovered and much additional information acquired, which 
find expression here, together with a résumé of everything of 
value previously published. The typography is all that could be 
desired, and misprints are noticeably few in number. e illus- 
trations are excellent, and comprise a full length figure and out- 
lines of the bill, wing, and foot of at least one species of each 
genus; and sixty-four plates representing the head, for the most 
part of life size, of each species. Volume I begins with an intro- 
duction giving the general anatomical characteristics of Aves, and 
their classification. Under the first family, or Turdidæ, are in- 
cluded sixteen species and seven varieties. Two only (T. Pallasi, 
with var. nanus and var. Auduboni, and T. Swainsoni with. var. 
ustulatus) are found from ocean to ocean, being modified in certain 
regions as above. Turdus confinis is united to migratorius as a 
Variety ; and T. iliacus of Europe is admitted into our fauna, hav- 
ing been twice obtained in Greenland. 
Harporhynchus Lecontei and longirostris are given as varieties 
respectively of H. redivivus and rufus. Phyllopneuste Kennicotti 
Baird is a synonyme of P. borealis Blasius, the latter name having 
Priority ; it is a Northeastern Asian species, accidental in Alaska 
and perhaps in Europe (Heligoland). Saxicola enanthe is now 
recognized as by no means rare in the northern parts of our con- 
tinent, where it seems to become more abundant yearly. Regulus 
Cuvieri Aud. is included ; a second specimen, together with the 
nests and eggs of the two common species, are still desiderata. 
The Paring comprise twelve species and three varieties, of which 
ee latter two (P. septentrionalis and occidentalis) are races of 
atricapillus. Sitta includes three species only, S. aculeata be- 
‘ng given as a variety of Carolinensis, and pygmea (ILI, 502) 
as “probably a geographical form of S. pusilla.” Our Creepers 
are regarded as Certhia familiaris var. Americana and var. Mez- 
ag Here, as in many other parts of the present work, the 
Judiciously, In regard to the present species we can say from 
careful personal observations, that the habits and notes (including 
