VOL. XXXII, NO. 380 AUGUST, 1898 
FAE 
AMERICAN 
NATURALIST 
A MONTHLY JOURNAL 
DEVOTED TO THE NATURAL SCIENCES 
IN THEIR WIDEST SENSE 
CONTENTS 
I. Dentition of Devonian Ptyctodontidæ. Conclusion . . . C.R. EASTMAN 
II. The Wings of Insects, III (Concluded) . J.H. COMSTOCK and J. @. NEEDHAM 
TI. Alternation of Sex in a Brood of Young Sparrow Hawks . R. W. SHUFELDT 
IV. “Noxious” or “Beneficial?” False Premises in Economic Zoölogy. 
SAMUEL N. RHOADS 
V. A Pocket Mouse in Confinement . Saree tees J. A. 
VI. Editorial: The Need of an Ania “ Leuniss.” 
Tk Reviews of Recent Literature: Anthropology, sii es a Brassempouy, The Eth- 
nology of Funafutti, The Mounds of Louisiana — Zoölogy, The Segmentation 
of the Head, The Stomach of Migrating Salaki Terminolo ogy of the Central 
Nervous System, Processus Odontoideus Atlantis Hominis, Comparative 
Anatomy for Medical Students, The “Claspers” of Elasmobranchs, Cope’s Lec- 
tures on Vertebrates, Packard’s Text-book of reeset Faune de France, 
Revision of the Melanopli, Handlirsch’s Monograph of the Phymatide, Fer- 
nald’s Pterophoride of North America — Botany, The Aad ino of Spore- 
producing Members, Recent Inexpensive Popular Literature on Mushrooms, 
Merrill on Lower California, Whitney on Florida, Forests of Wisconsin, Porter’s 
Translation of the “Bonn” Text-book of Botany, Catalogo de Plantas Mexi- 
canas, Recent Contributions to Morphology of the ae ran Mineralogy, 
Genesis of the Diamond, Etching Figures of Triclinic Minerals, Sea 
Rhodolite — ee Classification of Igneous — California, Nodular 
Granite, Not 
VIII. Scientific nar 
IX. Publications Received. 
BOSTON, U.S.A. 
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