CONTENTS. XI 



XXII.-XXIV. Illustrating paper of J. S. Newberry. " New Species and 

 a new Genus of American Palaeozoic Fishes, and the Genera Oracanthus? 

 Dactylodus, Polyrhizodus, Sandalodus. Deltodus." 



Plate XXI.-XXVI. Illustrating paper on " Lamellibranch Boring Mol- 

 luscs." 



_ _ , Plate XXVII. Illustrating paper on " Spawning of the Brook Lamprey." . 



-^ 4^ Plate XXVIII.-XXXVL. Illustrating paper, "Observations on the -H 

 ' ■ Plankton of Puget Sound." ^ 



\ :El^TfeXXXV\; I\V^^tTa-;'^> "^rftr 0>x ^^Jd^^\ 



0>-CiC.Y\Y:a.Q,. 



