u 



CONTENTS 



PAGE 



List of Additions to the Library, v 



Art. L — Review of the Birds of Connecticut, with 



REMARKS ON THEIR HABITS. By C. HaRT MeRRIAM, . 1 



Art. IL — List of Writings relating to the Method 

 OF Least Squares, with historical and critical 

 NOTES. By Mansfield Merriman, .. 151 



Art. in. — Ventral Fins of Ganoids. By James K. 



Thacher. With plates 1 and 2, 233 



Art. IV. — Some interesting new Diptera. By S. W. 



Williston, 243 



Art. V. — On the species of Pinnixa inhabiting the 

 New England Coast, with remarks on their early 

 stages. By S. I. S:mitii, 24*7 



Art. VI. — Occasional occurrence of tropical and sub- 

 tropical species of Decapod Crustacea on the 

 Coast of New England. By S. I. Smith, 254 



Art. VII. — On the Amphipodus genera, Cerapus, Un- 



CIOLA, AND LePIDACTYLIS, DESCRIBED BY ThoMAS SaY. 



By S. I. Smith. With plate 2a, 273 



Art. VIII. — New England Annelida. Part I. Histor- 

 ical Sketch, with annotated lists of the species 

 hitherto recorded. By A. E. Verrill. With 



PLATES 3-12, 285 



Art. IX. — The North American Species of Conops. 



By S. W. Williston, 325 



