VoL. XXXIII, No. 391 JULY, 1899 
THE 
AMERICAN 
NATURALIST 
A MONTHLY JOURNAL 
DEVOTED TO THE NATURAL SCIENCES 
IN THEIR WIDEST SENSE 
CONTENTS 
I. Observations on Owls, with Particular Regard to A capes niger) Habits i 
Dr. T. H. MONTGOMERY 563 
II. The Wings of Insects, T oy ded 
essors J, H. COMSTOCK and J. G. NEEDHAM 573 
III. On New Facts Lately Preset in poise to the Hypothesis 
of ity of Marine Faun Dr, A.E.ORTMANN 583 
IV. eo of North-American SES ee L Fresh-Water 
Bryoz Dr. C. B. DAVENPORT 593 
V. Notes on a Habits of Bisola oaii - . . W. E. PRAEGER 597 
VI. A New Name for the Great Crested Anolis of Jamaica 
Dr, LEONHARD STEJNEGER 601 
VII. Editorial Comment: “Scientia,” Western Morphologists 603 
VIII. Reviews of Recent Literature: General Biology: The Specialized Nature 604 
of Cells, Sex, The Removal from Water of Nitrogenous Matter Excreted 
by Marine Animals — Anthropology: Physical Qualities of the Children 605 
of Prague; Anthropological Notes — Psychology: The Dawn of Reason, 611 
The Methods of Comparative Psychology — Zoölogy : Some Japanese 615 
Oligochæta, Strange Protoplasmic sagem de in Epithelial Cells, Catalogue 
of the British Columbia Provincial Museum, The Systematic Position of 
Peripatus, New York sateen i Adaptive I Modifcatcas i in Respiratory 
Organs, Reptiles of North Am Zoölogical Notes 
X. Publications Received , 628 
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