The American Naturalist. [March, 
Herodiones. 
Paludicolse. 
Limicolse... 
Pici.....'. 
The work is especially valuable for the following things : 
Dates of arrival and departure of summer residents. 
Dates of arrival and time of stay of migratory birds breed- 
ig farther North. 
Dates of arrival and departure of winter visitors. 
Breeding season and nesting habits. 
F. M. Fultz, Burlington, la. 
RECENT BOOKS AND PAMPHLETS. 
Ber<^ens Museum.— Kzxsh^xtXxixngiox \Z'^^. Bergen 1 888. From the 
Cafnpbell, John P. — Biology and its place in a liberal education. 
Athens, Ga. 1888. From the author. 
Cornell ^/w/V^rw/y.— Agricultural Station, Bulletin III. From the 
Station. 
Gage, S. i^:— Microscopial Tube Length— Thickness of Cover-glass. 
— Form and size of the Blood Corpuscles of the Lamprey— Mor- 
phology of Muscular fibres in Minute Animals. Ext. The Mi- 
croscope. 1887-8. From the Author. 
Jenkins, O. P., and Everman, B. /^—Description of eighteen new 
species of fishes from the gulf of California. Ext. Proc. U. S. 
Nat. Mus. 1888- From the Authors. 
Korschelt, Eugen. — Ueber die Geschlechtliche Fortpflanzung der Ein- 
zeUigen und besonders der Infusorien— Ext. Kosmos 1886.— 
Funktion und Lage des Zellkerns bei den Pflanzen. Ext. Biol. 
Centralblatt viii. From the author. 
Letvis, T. ZT.— Effigy Mounds in Northern Illinois. Ext. Science. 
1888. From the Author. 
McCulloch, Oscar C— The Tribe of Ishmael, a study in social degrada- 
tion. 1888. From the Author. 
