No. 40. 



Coast anxl Geodetic -.'urvey Report of 1881 . 



CLUSTER OF OYSTERS AND SPOTSTGE. 



From xmworked. Taeds , Chesapeake Bay. 



Natirral Size. 



-I/foni A ' />L:>l>"f""*t"- Hc>IUiif/r, 



