TABLE OF CONTENTS 



PAGE 



Preface vii 



Lee Barker Walton — 



An Appreciation by Herbert Osborn IX 



List of Coleoptera Collected in the Viciniy of Keuka 

 College 1 



Capturing Bembidium and Other Small Coleoptera— 3 



Regarding the Identity of Oxyporus ncfipennis and 

 stygicus 4 



The Army Worm 5 



The Basal Segments of the Hexapod Leg 6 



The Metathoracic Pterygoda of the Hexapod and Their 

 Relation to the Wings 12 



The Arrangement of the Segmental Muscles in the 

 Geophilidas, and Its Bearing upon the Double 

 Nature of the Segment in the Hexapoda and 

 Chilopoda 1 7 



The Relation of Variation to Environment in Chry- 

 santhemutn leucanthemum 18 



The Cataloguing of Museum Specimens 20 



A Practical Dissecting Tray 22 



A Land Planarian in Ohio 23 



Actinolopbus viinutus, a New Heliozoan, with a 



Review of the Species Enumerated in the Genus _ . 24 



Naididae of Cedar Point, Ohio 28 



The Relation of Variability to Food Supply as Illus- 

 trated by the White Daisy, Chrysanthcmiun leu- 

 canthemum L. and the Yellow Perch, "^erca 

 flavescens Mitch. 46 



Land Planarians in the United States 48 



Contributions to Museum Technique: I. Cataloguing 

 Museum Specimens 50 



