6 



PAGE. 



Valves, position of . . , 6 Winther, G 



Van Beneden . . . .24, 37 Woonward's Manual of the 



Van Leeuwenhock, A . . 76 Mollusca 



Vanne Cxiv Work of investigation, 



Verrill, Prof .... 24, 78 propagation, etc . . . 



Vibrones 25, 32 Wrightson, J. W . 3. 26, 



Von Jhering 5 



Von Ergo Rich. Ritter . 'j-j X 



Vorticello 38 Xylotrya fimbriata . . . 



White, Dr. C. A ... . 29 Y 



Whitman 86 Yield of the Potomac . . 



Why dredging injures beds 30 



Willis 76 Z 



Winslow, Francis, icvi), Zootharanium asbusculum 



4, 62, -ji 



PAGE. 



12 



III 



38 



35 



VI 



24 



