RECENT LITERATURE. 
On a Collection of Mammals from the San Pedro Martir 
Region of Lower California, with Notes on other Species, particu- 
larly of the Genus Sitomys. By J. A. ALLEN. Bull. Am. Mus. 
Nat. Hist., v, Author’s Ed., Aug. 18, 1893, 181-202. ‘This 
paper is based upon a collection of 250 specimens obtained by 
Messrs. Thurber and Anthony. The new forms described are 
Sttomys americanus thurberi, Sitomys martirensts, Tamias leucurus 
peninsule and Scapanus anthonyi from the San Pedro region and 
Sttomys gilberti from San Benito County, Cal. 
The American Naturalist, Sept. 1893. Description of Four 
New Rodents from California. By SAMUEL N. RHOADS. The 
four species proposed are Szfomys major, S. herronit, Onychomys 
ramona, and Reithrodontomys pallidus, all from the southern part 
of the State. 
The Prairie Ground Squirrels or Spermophiles of the Miss- 
tssippi Valley. By VERNON BaILEy. U.S. Dept. Agr., Div. of 
O. and M., Bull. No. 4, p. 69. Prepared under the direction 
of Dr. C. Hart Merriam, Chief of Division. An interesting and 
valuable economic bulletin, with three colored plates and four 
outline maps of the United States, showing distribution of species 
by colored areas. 
Report of the Ornithologist and Mammalogist for 1892. By 
C. Hart Merriam. U.S. Dept. Agr., 181-200, illustrated by 
fine colored plates of rodents. 
The Nidiologist. Published by Henry Reed Taylor, Ala- 
meda, Cal. The initial number of a sixteen-paged monthly was 
issued in September and the October and November numbers 
have also appeared. ‘The title is not pleasing and brings into 
use a hybrid word which might have been avoided. The quality 
of several articles is far above that found in the amateur papers 
which appear and perish annually; but these articles are by well- 
known ornithologists who may not continue their support unless 
a stronger scientific tone is evidenced. Careless proof-reading is 
found in all three numbers. The half-tone illustrations are cer- 
tainly interesting and perhaps as good as can be produced with 
