CONTENTS. 
PAGE, 
INTRODUCTION. : 1 
Sec. I. OrnirHoLtoGy Drrmyrnp— Birps DEFINED — BriEF DESCRIPTION OF THEIR 
PECULIAR COVERING. . . 0. 1Oxo No oe sb: Chiro CRAM JO od april! 
Src. II. AN ALLUSION TO THE CLASSIFICATION OF Brrps — Taxonomy — SrTrRuUC- 
TURE — CHARACTERS — Groups OF DmrreRENT GRADES — TYPES AND ABER- 
RATIONS — EQUIVALENCY — ANALOGY AND AFFINITY — EXAMPLE. 0 7 
Sec. III. Derrrmirion AND BRIEF DESCRIPTION OF THE EXTERIOR OF A BirpD. — 
Parts AND OrGans—I. Tur BoDy: HEAD, NECK AND BODY PROPER.—II. THE 
MEMBERS: BILL, WINGS, TAIL, FEET. t Che ck ks 13 
Sec. IV. Directions — How To Usr tur Key. — How To Measure a SPECI- 
MEN, ETO. < . . Phat 53 
ARTIFICIAL KEY TO THE GENERA. p iva oe ae 61 
SYSTEMATIC SYNOPSIS OF NORTH AMERICAN BIRDS. 69 
SYNOPSIS OF THE FOSSIL FORMS. 347 
ADDITIONS AND CORRECTIONS. 351 
INDEX AND GLOSSARY. 353 
